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

• Myocardial Apoptosis Induced by Simulated Weightlessness in Rats
  模拟失重对大鼠心肌细胞凋亡影响的实验研究
• Effects of Conditioned Medium of Osteocytes Subjected to Simulated Weightlessness on Activity of Osteoblasts
  模拟失重骨细胞条件培养基对成骨细胞活性的影响
• The study took two sets of rats, both of who were subjected to an environment that simulated weightlessness.
  实验设置了两组老鼠，都放置于模拟失重的环境中。
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。