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。
• Objective To study the effects of simulated weightlessness on learning and memory capability of the brain.
  目的研究大鼠尾部悬吊模拟失重对脑学习记忆能力的影响。
• When a sportsman rises high into the air and an astronaut travels around the orbit, they will be in weightlessness.
  运动员的腾空和宇航员在轨道上的飞行都是处于失重状态。
• You have to pay a price for this half a second of weightlessness.
  半秒钟的失重状态，可是有代价的。
• 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。
• 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。
• 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。
• Scientists always knew it would not be easy for humans to work in the weightlessness of space.
  科学家们历来清楚，人在太空失重状态下工作绝非易事。
• 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。
• Astronauts in flight must adjust to weightlessness.
  宇航员在飞行中得适应失重状态。