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Anonymous users2024-02-132004, medium. China officially launched the lunar exploration project and named it "Chang'e Project". The Chang'e project is divided into "unmanned lunar exploration", "manned lunar landing" and "building a lunar base".
ground" three stages. At 18:05 on October 24, 2007, Chang'e-1 was successfully launched. After completing all the missions, in 2009 it was planned to hit the moon in a controlled manner.
At 18:57:57 on October 1, 2010, Chang'e-2 was successfully launched. Fulfilled and exceeded the set tasks. On September 19, 2012, Ouyang Ziyuan, chief scientist of the lunar exploration project, said that the lunar exploration project has completed the lunar surface survey mission of the Chang'e-3 satellite and the Yutu lunar rover.
Chang'e-4 is the backup satellite of Chang'e-3. The main scientific objectives of Chang'e-5 include a field survey of the landing area. investigation and analysis, as well as analysis and research after the return of lunar samples to Earth.
Middle. The Chinese people's lunar exploration program has made new contributions to the peaceful use of the moon by mankind.
2020.November 24, 4:30 a.m., middle. The country is in the middle.
At the Wenchang Cosmodrome, the Chang'e-5 probe of the lunar exploration project was successfully launched by the Long March 5 Yao-5 carrier rocket, and after the rocket flew for about 2,200 seconds, the probe was successfully put into the predetermined orbit and turned on. The first extraterrestrial heaven of the country. Volume sample return tour.
On December 1, the Chang'e-5 probe successfully landed in a pre-selected landing area on the front side of the moon.
2020.On December 17, the Chang'e-5 returner carried lunar samples, re-entered and returned by semi-ballistic jump, and landed safely in the predetermined area of Siziwang Banner in Inner Mongolia.
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Anonymous users2024-02-12At 18:57:57 on October 1, 2010, Chang'e-2 was successfully launched, and China began its second lunar exploration.
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Anonymous users2024-02-11On December 30, 9999, 12:59:59, the moon exploration was successful!
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Anonymous users2024-02-10On November 28, 2010, the moon exploration was successful!
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Anonymous users2024-02-09As early as 1994, China's aerospace science and technology workers conducted a study on the necessity and feasibility of lunar exploration activities, completed the study of the technical scheme of the lunar exploration satellite in 1996, completed the research on the key technology of the satellite in 1998, and later carried out the work of deepening the demonstration. After 10 years of deliberation, it was finally determined that China's entire lunar exploration project is divided into three stages: "orbiting", "landing" and "returning". The first phase of the lunar orbiting project will launch the lunar exploration satellite "Chang'e-1" in 2006 to explore the lunar surface environment, landform, topography, geological structure and physical field.
The second phase of the project, scheduled for 2007-2010, aims to develop and launch a spacecraft that will land on the moon for exploration in a soft landing. The specific plan is to use rovers and automatic robots that safely land on the lunar surface to detect the rock and mineral composition of the landing area, measure the heat flow and surrounding environment of the landing site, and carry out high-resolution photography and on-site detection or sampling analysis of lunar rocks, so as to provide chemical and physical parameters of the lunar surface for the site selection of the lunar base in the future.
The third phase of the project is scheduled to take place from 2011 to 2020, with the goal of lunar surface survey and sample return. In the early stage, the main thing is to develop and launch a new type of soft landing lunar rover to inspect and survey the landing area. Later, that is, after 2015, we will develop and launch small sampling return capsules, lunar surface rock drills, lunar surface samplers, robot manipulators, etc., collect key samples and return them to the earth, investigate the landing area, and provide data for the next manned lunar exploration and the site selection of lunar outposts.
The completion of this section of the project will bring China's space technology to a new level.
The second decoction of Chinese medicine should be soaked in cold water, and then the decoction can be stopped after about ten minutes after boiling. If you soak in hot water or boiling water, the decoction time will be relatively shortened, which is not conducive to the precipitation of the active ingredients of the drug, and will have some impact on the effect of the drug. The decoction of traditional Chinese medicine has always been a little more particular, such as the first decoction needs to add a little more water, more than two horizontal fingers of the drug, and sometimes it is necessary to add or subtract water appropriately according to the material of the drug.
Give it up It must be difficult to find too many friends to accompany you in the first month, and you can survive If you can love for the first time, you can have a second time If you don't want to give up, have a long talk with him, if he can't break off with that woman, you still don't have too much hope Even if he says that he can break it, you still have to think about it again, after all, he lied to you before and didn't contact that person again Feelings are the thing that can't afford deception and distrust The girl still has to cherish herself Don't regret it until the end The above is a personal opinion The decision is up to you to consider it carefully.
China's second Arctic scientific expedition lasted 74 days and sailed 13,985 nautical miles, overcoming difficulties such as the Arctic climate, harsh environment and significantly accelerating sea ice changes along the way, and successfully completed the two main scientific expedition tasks of "understanding the Arctic's response and feedback to global changes" and "understanding the impact of Arctic changes on China's climate and environment". Three-dimensional integrated observation of multiple disciplines such as meteorology and atmospheric chemistry. >>>More
1. Solution. Please write an essay on the topic "Second Time". Inheriting the proposition method of the previous few years, the form of semi-propositional composition is adopted, so that students have a larger space for free materials, but it is very different from the previous semi-propositional composition and topic composition. >>>More
The two of you lack communication, because you are concerned about a small matter, which cannot be good, and both parties have to learn to be tolerant.