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

• 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。
• 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。
• Conclusion four weeks of stimulated weightlessness can lead to osteoporosis in acantha and feurar but has no distinct effect on mandible.
  结论4周模拟失重可以引起脊椎骨股骨的骨质疏松，但是对下颌骨没有明显的影响。
• 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。
• Space radiation kills us; weightlessness weakens us; isolation makes us melancholy.
  太空的辐射能让我们失去生命，失重的环境让我们身体虚弱，与世隔绝的状态让我们感到忧郁。
• Objective To observe the effects of simulated weightlessness on the nutritional state and contents of serum lipids in human.
  目的探讨模拟失重对机体膳食摄入营养状况和血脂含量的影响。
• The astronauts will soon get used to the condition of weightlessness.
  那些太空人不久就会习惯于无重力状态。
• They've been experimenting with weightlessness.
  他们一直在进行失重的实验。
• Passengers will get about five minutes of weightlessness, and then glide back down to landing.
  乘客们将获得年夜约五分钟的失踪重状况，然后飞船滑翔向下直到着陆。
• To investigate the changes and its protection of cell apoptosis in pulmonary tissues of tail-suspended rats in simulated weightlessness condition.
  研究尾悬吊模拟失重大鼠肺组织细胞凋亡情况的变化及其防护方法。