weightless

英['weitlis]美['weitlis]

a. 无重量的,无重力的

反：	[a.] weighty

Much of the early work aboard the ISS would focus on long-term life-sciences and material-sciences research in the weightless environment.
国际太空站早期的作业集中在无重力环境下长期生命科学与材料科学研究。收藏
It is in this sense that an astronaut orbiting the earth in a space capsule is said to be "weightless"
就在这种意义上，宇宙飞行员在宇宙密闭小舱里，环绕地球飞行时被说成是“失重”了。收藏
The "weightless" condition of astronauts in orbit about the earth arises from just this cancellation of inertial and gravitational forces
在围绕地球运转的轨道中，宇航员的“失重”状态就是惯性力与引力相互抵消的结果。收藏
One experiment will test if chicken eggs can survive in a weightless environment
一项实验是检验鸡蛋在失重情况下能否存活。收藏
Recent space travels have shown that the body needs special exercise in a spaceship to suit the weightless conditions.
最近的宇宙飞行表明，人体需要在宇宙飞船中进行专门训练才能适应失重的情况。收藏

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having little or no weight or apparent gravitational pull; light
- floating freely in a weightless condition
- a baby bat...fluffy and weightless as a moth
- jackets made of a weightless polyester fabric
[反] weighty

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