weightlessness是什么意思？

weightlessness

英['weɪtləsnəs] 美['weɪtləsnəs]

• n. 无重状态，失重；

形容词：weightless;

例句

• To apply engineering Methods : To the study of astronaut adaptation to weightlessness. 应用 工程方法 于宇航员在无重状态下的适应性研究.
• Objective To observe bone mass changes during convalescence after simulated weightlessness. 目的观察模拟失重恢复期骨质的变化.
• Astronauts in flight must adjust to weightlessness. 宇航员在飞行中得适应失重状态.
• The excreta not because of weightlessness, but will scatter to the installment outside. 排泄物就不会因为失重, 而散落到装置以外.
• The astronauts are conducting a series of experiments to learn more about how the body adapts to weightlessness... 那些宇航员正在进行一系列实验，以更多地了解身体如何适应失重状态。

柯林斯高阶英汉双解学习词典释义

• ADJ-GRADED
  无重量的;轻的
  Something that is weightless weighs nothing or seems to weigh nothing.
  例句
  Photons have no mass—they are weightless. 光子没有质量——它们是无重的。 ...weightless silk curtains. 轻柔的丝质窗帘
• ADJ
  失重的
  A person or object is weightless when they are in space and the earth's gravity does not affect them, so that they float around.
  例句
  Helen described life in a weightless environment during her period in space. 海伦描述了她身处太空时失重状态下的生活。

英英词典释义

• Noun
  1. the property of being comparatively small in weight;
  "the lightness of balsa wood"

行业词典

• 力学： 失重；
  心理学： 失重；
  物理学： 失重；
  生理学： 失重；
  航天： 失重；