What does the country proverb Jackal in the west, daddy in the east mean?

Shaanxi was the land of Qin during the Warring States Period, and friends who are familiar with the Spring and Autumn Period and the Warring States Period know that Qin is it"Qi Chuyan, Han Zhao, Wei Qin"The western part of the Seven Kingdoms, the remaining six nations are collectively called"Shandong Six Kingdoms"The Qin State and the Six Kingdoms of Shandong were bounded by Hangu Pass. The Qin people are Han people, and since the Zhou Dynasty, they have the same roots and ancestors as the Six Kingdoms of Shandong; On the west side there are among the jackals"Jackals"It refers to the nomadic people west of the Qin State, and a few nomadic peoples such as the Dayue Xiongnu.

In fact, this proverb came from the pre-Qin period, Shaanxi was the land of the Qin State during the Warring States Period, and friends who are familiar with the Spring and Autumn Period and the Warring States Period know that the Qin State is"Qi Chuyan, Han Zhao, Wei Qin"The western part of the Seven Kingdoms.

Shark Jellyfish Dolphin Whale Hippocampus Octopus Squid Lobster Sea Lion Starfish

Coral coral

Crab

Octopus octopus

Lobster lobster

Shellfish shells

Shark shark

Sea cucumber sea slug

Squid cuttlefish

Shrimp prawn

Dolphin dolphin

Gold fish

Hair tail fish

Oyster oyster

Coral coral, sea urchin sea urchin, shrimp, jellyfish, seahorse sea horse, cuttlefish, cuttlefish

Octopus octopus, manatee manatee, lionfish, stingray ray, whale, starfish, starfish

Dolphin, shark, sea turtle, hermit crab, sea otter

fur seal, walrus walrus, seal seal, sea anemone, sponge, crab crab,

Trumpetfish, clownfish, sea lion, squirrel fish

Butterfly fish, flounder, porcupine fish.

Coral coral

Octopus octopus

Dolphin dolphin

Shellfish shells

Shark shark

Marine animals are a general term for heterotrophic organisms in the ocean. There are many phyla, and the morphological structure and physiological characteristics of each phyla can be very different. Tiny single-celled protozoa and large cetaceans can be more than 30 meters long and weigh more than 190 tons.

Marine animals are found from the surface of the sea to the bottom of the sea, from the shore or intertidal zone to the bottom of the deepest trenches.

Octopus (octopus): is the common name for 252 species of marine mollusks in 26 genera of the octopus family. It is the largest family of cephalopods, which can be divided into bathypolypodinae, eledoninae, graneledoninae and octopodinae.

The body is ovate or oval, muscular, the mantle cavity has a narrow opening, and the body surface is generally without water holes.

Dolphins (scientific name: delphinidae) have morphological traits typical of toothed cetaceans: a spindle-shaped body; a single crescent-shaped breathing hole; skull intussusception, with the maxilla expanding posteriorly and overlapping the frontal bone; left-sided asymmetry of the cranial parietal; conical or nail-shaped teeth, etc.

The most obvious variations are related to feeding organs such as beaks, upper and lower jaws, and teeth. The length and size of the beak, the number and size of the teeth, reflect the range of ecological niches occupied by different species.

Sharks have been on Earth since 300 million years before the appearance of dinosaurs, and they have been around for more than 500 million years, and they have barely changed in nearly 100 million years. Sharks, known as sharks, sharks, and sand fish in ancient times, are behemoths in the ocean, so they are called "wolves in the sea".

As if feeling embarrassed by the method of Guangxi University, when it reached its highest peak, the repetition of the direction of the closed v individual abstract algebra.

The body is crystal clear and drifting with the flow of jellyfish, beauty.

Beautiful corals, colorful sea anemones, shrimp and crabs in armor, squid squid, precious sea cucumbers, ancient sea turtles, cute seals, intelligent and dexterous dolphins, huge giant whales, thousands of seahorses with their heads held high, colorful starfish, flying fish like arrows from the string, strange fish and so on. X0d marine plants can be simply divided into two main groups: lower algae plants and higher seed plants.

Marine plants are the "fertile grasslands" of the marine world, which is not only the natural "pasture" of marine fish, shrimp, crabs, shellfish, sea beasts and other animals, but also the green food of human beings, and also the provider of industrial raw materials and agricultural fertilizers with wide uses, and an important raw material for the manufacture of marine medicines. The differences in seafloor plants are also significant. They come in a variety of colors, including brown, purple, and red.

They also have different shapes, take seaweed, for example, the smallest can only be seen clearly with a microscope, and the largest is two or three hundred meters long, which is the longest creature on the earth.

four, the Bohai Sea, the Yellow Sea, the East China Sea, and the South China Sea.

1. The Bohai Sea is located at the northern tip of eastern Chinese mainland, at 37 07 40 56 north latitude and 117 33 122 08 north latitude. The Bohai Sea is a closed inland sea. To the east is the line between the Laotieshan headland of the Liaodong Peninsula and the Penglai headland of the Shandong Peninsula, surrounded by land on three sides, north, west and south, and adjacent to Liaoning, Hebei, Tianjin, Shandong Province and City respectively.

2. The Yellow Sea is a marginal sea between China and South Korea, and is a semi-enclosed sea area close to the north-south direction. It is bounded by Laotieshan Jiao in the south of the Liaodong Peninsula and Penglai Jiao on the north coast of the Shandong Peninsula, and is bounded by Qidongzui on the north coast of the Yangtze River estuary in China and the southwest corner of Jeju Island in the south. The average depth of the Yellow Sea is 90 meters.

The seabed of the Yellow Sea is relatively flat, with most of the water depth exceeding 60 meters.

3. The East China Sea is a marginal sea surrounded by Chinese mainland and the island of Taiwan, the Korean Peninsula, the Japanese island of Kyushu and the Japanese Ryukyu Islands. It is connected to the Sea of Japan by the Mahai Sea in the northeast and the South China Sea by the Taiwan Strait in the southwest.

4. The South China Sea is located in the southern part of Chinese mainland and is one of China's western Pacific Ocean and three marginal seas. Its natural sea area is about 3.5 million square kilometers, of which the total area of China's territorial waters is about 2.1 million square kilometers. It is the largest and deepest sea area in China's coastal waters, with an average water depth of 1,212 meters and a maximum water depth of 5,559 meters.

From top to bottom: Bohai Sea (within the Shandong Peninsula), Yellow Sea, East China Sea, South China Sea. Among them, the South China Sea is China's largest inland sea, and the disputed islands and scope are the most complex and complex.

The Bohai Sea, the Yellow Sea, the East China Sea, and the South China Sea are the four major seas of China, and the Bohai Sea used to be called Canghai, with an average water depth of 25 meters. The average depth of the Yellow Sea is 44 meters, the average depth of the East China Sea is 349 meters, and the average depth of the South China Sea is 1,212 meters. ”

Bohai Sea, Yellow Sea, East China Sea, South China Sea, Beibu Gulf. (from north to south).

Bohai Sea, Yellow Sea, East China Sea, South China Sea, Beibu Gulf.

The Yellow Sea, the East China Sea, the South China Sea, the Bohai Sea.

Bohai Sea, Yellow Sea, East China Sea, South China Sea.

1. Water resources.

The ocean is the cradle of life, and seawater is not only a valuable water resource, but also contains rich chemical resources. Strengthening the development and utilization of seawater resources (including brackish water, the same below) is an important measure to solve the problem of freshwater crisis and resource shortage in coastal and western brackish water areas, and is an important guarantee for realizing the strategy of sustainable development of the national economy. Seawater desalination is an important way to develop new water sources and solve the shortage of freshwater resources in coastal areas.

2. Food resources.

Seaweed, which grows naturally only in offshore waters, has an annual output of more than 15 times the world's total annual wheat production, and if these algae are processed into food, they can provide people with sufficient protein, vitamins and minerals needed by the human body, and the ocean is rich in plankton invisible to the naked eye, processed into food, enough to meet the needs of 30 billion people, and there are many fish and shrimp in the ocean, which is really the breadbasket of the future of mankind. There is also the krill in Antarctica, which produces more than 5 billion yuan every year, and we can catch only 100 million tons, which can more than double the world's fish and shrimp catch.

3. Oil and gas. The world's oceans are extremely rich in oil and gas resources, accounting for about 34% of the world's total oil resources. The distribution of the world's marine oil and gas resources, like onshore oil and gas resources, is extremely uneven. Among the four oceans and dozens of offshore waters, the Persian Gulf is the richest in oil and natural gas, accounting for about half of the total reserves; second is the waters of Lake Maracaibo in Venezuela; the third is the waters of the North Sea; fourth is the Gulf of Mexico; It is followed by the Asia-Pacific region, West Africa and other sea areas.

4. Manganese nodules.

The total reserves of manganese nodules on the seabed of the world's oceans reach 3,000 billion tons, and 1,700 billion tons in the Pacific Ocean alone, including 400 billion tons of manganese, 16.4 billion tons of nickel, 8.8 billion tons of copper, and 5.8 billion tons of cobalt. It is mainly found in the Pacific Ocean, followed by the Atlantic and Indian oceans at depths of more than 3,000 meters. The central Pacific Ocean is most abundant in the sea area of 6°30 20°N and 110°180°W longitude.

It is estimated that about 6 million square kilometres of high-grade manganese nodules are enriched in the area, sometimes with coverage of more than 90 percent.

5. Placer mine. Mainly on land, rock and mineral detritus, transported and sorted by rivers, seawater (including currents and tides), glaciers and winds, and finally deposited and enriched in the most suitable areas of coastal or shelf areas. Such as placer gold, placer platinum, diamond, placer tin and placer, and ilmenite and zircon, rutile and monazite and other symbiotic composite placers.

The oceans are extremely rich in resources, with 80% of the earth's biological resources, a large part of which can be consumed by humans, and its total food is more than 1,000 times the total amount of food on land, and the total catch in the ocean can reach 84 million tons per year, which can feed at least 30 billion people. The oceans contain mineral resources that are very scarce to mankind: oil and gas account for more than 1 3 of the world's total, and the current extraction has reached 67 million tons, accounting for more than 1 4 of the world's total oil production, and this is just the beginning; The ocean contains 3 trillion tons of polymetallic nodules rich in manganese, copper, cobalt, nickel, etc.; In addition, many new deposits are being discovered.

The total amount of minerals in the entire ocean is also more than 1,000 times greater than that on land. The turbulent ocean is an inexhaustible source of renewable energy, and tidal and wave energy can be used to generate electricity. At the time of the global shallow water crisis, it was also a freshwater source (desalination) with high hopes.

1. Marine biological resources: fish, shrimp, shellfish, algae, etc. can be used for edible or medicinal purposes. 2. Marine mineral resources:

First, on the shallow seabed of the continental shelf, there are abundant oil, natural gas, coal, sulfur, phosphorus, etc.; second, in the coastal placer mine in the nearshore zone, it is rich in sand, shells and other building materials and metal minerals; Third, deep-sea manganese nodules are widely distributed in most ocean basins.

3. Marine energy: tidal power generation and wave power generation have commercial development value.

4. Marine space resources: including transportation, production, communications, power transmission, storage, culture and entertainment, etc. Transportation includes seaports, terminals, marine vessels, navigation canals, undersea tunnels, marine bridges, marine airports, submarine pipelines, etc.

The production space includes offshore power stations, industrial artificial islands, offshore oil cities, land reclamation, marine ranches, etc. The communications and power transmission space is dominated by submarine cables. The storage space includes submarine cargo yards, submarine warehouses, offshore oil depots, marine waste disposal sites, etc.

Cultural and recreational facilities include a marine park, a beach, a marine sports area, and more.

1. Magnificent: The metaphor is majestic and majestic (mostly used in poetry, mass movements, etc.). Thousands of miles of the Yangtze River, the waves are magnificent, rolling eastward. Southern Dynasty Song Bao Zhao "Ascending the Great Thunder Shore and Sister Book": "Travelers are poor; Magnificent. ”

2. Rough waves: the appearance of surging water. Describe the waves as big and urgent. From "Three Kingdoms, Wu Shu, Sun Ce Biography": "It is the year of the land and the earthquake" notes "Wu Lu".

3, the sea and the sky: Tang Liu Shiyao's "Secret Farewell": "Zhu Xian secretly does not see anyone; The wind moves the shadows of the flowers and branches in the moon. Qingluan's veins flew westward; The sea and the sky are nowhere to go. ”

4. Calm waves: There is no wind and waves, and the water surface is very calm, which is a metaphor for calm and nothing. Song Lu Jiuyuan's "Quotations": "Because of what Ti Gong talked about last night; It's just a winning. When the wind is calm; None of these are true. ”

5. Boundless: The scope of description is extremely broad. Mr. Zhang stood on the deck of the ship and looked into the distance, the vast sea was boundless.

6. The pronunciation of the waves is hài làng jīng tāo. When people are quiet, every time they think about the stormy waves they have walked on, they are not unaware of it.