weightlessness

英 [ˈweɪtlɪsnɪs]

美 [ˈweɪtləsnəs]

n.  失重；无重状态

医学化学

BNC.37075 / COCA.22320

柯林斯词典

• ADJ-GRADED 无重量的;轻的
  Something that isweightlessweighs nothing or seems to weigh nothing.
  1. Photons have no mass—they are weightless.
     光子没有质量——它们是无重的。
  2. ...weightless silk curtains.
     轻柔的丝质窗帘
• ADJ 失重的
  A person or object isweightlesswhen they are in space and the earth's gravity does not affect them, so that they float around.
  1. 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。

英英释义

noun

• the property of being comparatively small in weight
  1. the lightness of balsa wood
  Synonym:lightness

双语例句

• Yes, but weightlessness and zero gravity are two different things.
  是的，但失重和零重力是两件不同的事。
• This proved that planned physical activity can prevent the bad effects of weightlessness.
  这证明，有计划的体育锻炼可以防止失重对人体的不良影响。
• They've been experimenting with weightlessness.
  他们一直在进行失重的实验。
• It also tested the effect of weightlessness on living creatures.
  飞行还试验了失重对生物的影响。
• Explain the short-term and long-term physiological consequences of weightlessness.
  解释长期和短期无重状态下的生理学影响。
• Medical tests found that the human body becomes used to weightlessness after about forty days in space.
  医学检查发现，在太空生活大约40天后，人体就可以适应失重状态。
• For the first time, a rocket unit was fired under weightlessness.
  这是火箭单元首次在失重状态下点火。
• Astronauts in flight must adjust to weightlessness.
  宇航员在飞行中得适应失重状态。
• The astronauts soon got used to the condition of weightlessness.
  太空人很快就习惯了失重状态。
• AIM: To observe the morphological changes of vestibular organs and to detect the calcium content of otoconia in rats after simulated weightlessness.
  目的：模拟失重状态下观察大鼠前庭器官形态学改变和测量耳石中的钙含量。