1. Space station is a large manned spacecraft, which can run in high earth orbit for a long time.
2. Space station has no main thrust system and landing equipment, so it can't maneuver and return to land in orbit, which is the main difference between space station and spacecraft or space shuttle.
China will build a space station around (20 16).
4. The space laboratory in China is equipped with (two cabins).
5. There are (4) control modes for spacecraft rendezvous and docking.
6. China Tiangong-1 will be launched in (20 15).
7. Tiangong-1 will conduct (5) rendezvous and docking tests.
8. American Skylab is an (experimental) space station.
9. The main purpose of building the International Space Station is to establish a permanent observatory in space.
10. There is no day and night on the space station, and there are (16) sunrises and sunsets a day.
1 1. The American accommodation module of the International Space Station provides (1 sleeping bag) sleeping equipment for astronauts living in the space station for a long time.
12. Space toilets use (exhaust) toilets.
13. How do astronauts urinate while walking in space? Go back to the space station module and pee in the space toilet.
14. The criteria for choosing space food are (applicability, nutritional value and convenience).
15. the water used by astronauts on the international space station is (brought from the ground).
16. the household appliances on the international space station are (vacuum cleaners
17. astronauts use toothpaste in space (no foam)
18. From 165438+ 10 in 2000 to 65438+February in 2009, (12) astronauts visited the International Space Station.
19. Three biological experiments on the International Space Station were completed by (astronauts).
Astronauts astronauts and some middle school astronauts, some middle school teachers and students.
20. Astronauts must wear extravehicular spacesuits when walking in space.
2 1. The first astronaut Leontov stayed in space for (10) minutes.
22. The Chinese astronaut who completed the spacewalk for the first time was Zhai Zhigang.
23. The most important equipment for astronauts' spacewalk on the International Space Station is the airlock.
24. The space suit for the space shuttle's extravehicular activities weighs (127) kg.
25. The extravehicular spacesuit contains (canned drinks), which can provide drinking water for astronauts.
26. The middle cabin in shenzhou spaceship is a return cabin.
27. shenzhou spaceship has a total length of about 9 meters and a total mass of about 8 tons. It has a rated crew of (7) and can run autonomously in orbit for (5,654,38+0) days.
28. The atmospheric pressure of shenzhou spaceship capsule is (pure oxygen 1 atmospheric pressure), and the gas in the capsule is (oxygen-nitrogen mixture). 29. During the ascent of the spacecraft, the astronauts will be in a (floating) state due to the accelerated flight of the rocket.
30. When flying in space, astronauts must wear spacesuits in the new stage (spacecraft ascending and in-orbit flight).