A black hole is a spot in space that has 1 (power) gravity. Its gravity is so strong that it pulls everything nearby into it, stars, planets and other things. Black holes form when a star dies. When that happens, a huge amount of matter crowds into a very small space, which 2 (...
7. gravity [ˈgræviti] n. 重力;引力 8. frontier[ˈfrʌntjə] n. 边境;国界;边远地区 9. vehicle[ˈviːikl] n. 交通工具;车辆 10. universe[ˈjuːnivəːs] n. 宇宙;天地万物 11. determined [di...
have expended their fuel and have dropped away, the payload section continues to coast upward, slowly losing speed because of gravity. Upward velocity drops to zero at peak altitude, and the payload then begins to fall. Typically, the payload is retrieved by parachute and flown again. Prior ...
14. A black hole is a spot in space that has(power) gravity. Its gravity is so strong that it pullseverything nearby into it, stars, planets and other things. 2【题目】4. A black hole is a spot in space that has(power) gravity. Its gravity is so strong that it pullseverything ...
A unique task for the three pilot-turned taikonauts is to create an "aquarium" and raise fish in zero gravity. They will create a simplified version of an aquatic ecosystem using zebrafish and algae to study how the space environment affects their growth and system balance. The "aquarium" is...
人教版必修三 Unit 4课文翻译+单元知识点汇总 U4课文翻译+单元知识点汇总 一 SPACE: THE FINAL FRONTIER 太空:最后的边境 “Are we alone? What’s out there?” Looking up at the stars, people have always wanted to learn more about space, and scientists work hard to find answers. They make vehic...
disappointed.Besides,when living in space,the astronauts have to recycledirty water so as to use it later.For 4.lack of gravity,their muscles become weak.They have to tape everything up,5.otherwise they would floataround.They also need to figure out a way to store 6.sufficient food and ...
Have you ever thought of living in the space? There is no gravity(重力) there, so things are not as 1 as they are on the Earth. When you drop something, it floats(飘) away slowly in the air. So do you know 2 the life is like in space?
⑦rocket /'rokIt/n.火箭;火Before the mid-20th century, most people felt数人认为太空旅行是一个箭弹travelling into space was an impossible dream.不可能实现的梦想。然⑧gravity /'graevati/n.重力;However, some scientists were determined to而,一些科学家决意要帮引力助人类实现探索太空的梦⑨satellite...
more taikonauts on long-term missions in space, ensuring their well-being has become a matter of public concern. The cutting-edge devices aboard the Tiangong Space Station have proved to be invaluable tools in maintaining the safety and health of the these taikonauts in a zero-gravity ...