weightlessness

1. ADJ-GRADED 无重量的;轻的
   Something that is weightless weighs 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
2. 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.
   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。

1. 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。
2. 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。
3. This course aims to introduce students to a quantitative approach to studying the problems of physiological adaptation to weightlessness.
   这门课程的目的是让学生了解一些研究无重状态下生理适应性问题的方法。
4. 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。
5. 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。
6. It also tested the effect of weightlessness on living creatures.
   飞行还试验了失重对生物的影响。
7. 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。
8. 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。
9. For this project, a new residence and state function room for the Irish Prime Minister, the objective was to create a weightlessness, freedom from the stress of public life.
   对于这个项目，一个新的居住和爱尔兰总理状态函数空间，其目标是创建一个失重状态，从公共生活压力的自由。
10. 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。
11. 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
12. 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。
13. They've been experimenting with weightlessness.
    他们一直在进行失重的实验。
14. 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
15. The astronauts soon got used to the condition of weightlessness.
    太空人很快就习惯了失重状态。
16. Astronauts in flight must adjust to weightlessness.
    宇航员在飞行中得适应失重状态。
17. Could people live in the weightlessness of space for that long?
    人类在太空失重的条件下能不能生存那样长的时间呢？
18. Astronauts quite often find that weightlessness makes them feel sick.
    宇航员相当经常地感到失重使他们觉得恶心。
19. 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。
20. Effects of simulated weightlessness on F-actin of pulmonary microvascular endothelial cells
    模拟失重对肺微血管内皮细胞F-actin的影响
21. 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。
22. 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。
23. 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。
24. 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。
25. 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。
26. 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。
27. 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。
28. 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。
29. 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。

noun

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

   Synonym:    lightness