What is a light swimmer and what are you?

Laser-emitting devices. Laser has the characteristics of good linearity and energy concentration, and has many applications. Machining, stage lighting, measuring .........The principle was proposed by Albert Einstein, and the first laser was the American scientist Hildo Mayman.

Beijing Amusement Park is located next to Longtan Park in Chongwen District, covering an area of more than 400,000 square meters, including more than 110,000 square meters of water surface. The amusement park not only has a variety of modern amusement facilities, but also is a garden with mountains and rivers and beautiful scenery, with the characteristics of integrating garden and amusement.

There are flowers in three seasons in the park, evergreen in four seasons, and various amusement facilities on the central island of the lake are dotted and colorful. Around the central island, there are 11 bridges with unique shapes and different styles between the land and the island. The park is scattered with rockery and strange stones, pavilions and corridors, large sculptures, especially a large color program-controlled laser fountain in the park, which is the first in the country, the fountain is composed of 960 sprinklers, 170 underwater lanterns, the central water column can reach up to 40 meters, and can change 11 kinds of flower patterns with the program and ** control, and can also form a water curtain with a width of 40 meters and a height of 20 meters.

State-of-the-art water screen movies can also be screened.

Similar to a projector, it can shoot dynamic light, and is often used in water screen movies to achieve good results.

You are the second person.

Everything is made up of matter.

I just want to say.

You're really bored!

I hope it's durian. Because it won't be eaten too quickly.

I would like to be a thousand-year-old ginseng... Hehe...

Grapes, which can be used to make wine, are more fragrant the older they are.

Durian, I don't want to be eaten by others.

Sansevieria trifasciata prain is a perennial evergreen herb of the lily family, and the rhizome grows in a creeping shape without a stem. The height of the plant can reach about 1 meter, the leaves are clustered and erect, thick and leathery, and there are irregular dark green cloud-like horizontal stripes on both sides, such as tiger tail.

There are transverse rhizomes. The leaves are basal, often 1 2, and there are 3 6 clusters, erect, hard leathery, flattened, but the cultivation in the family is often slow to see the flowers, mainly to appreciate the leaves.

It seems to be aloe vera.