“zero-gravity switch”的概念、定义、翻译、参考文献-科学参考

单词	zero-gravity switch
释义	zero-gravity switch [`zir·ō ¦grav·ǝd·ē ´swich] ^ELECTRICITY A switch that closes as weightlessness or zero gravity is approached; in one version, a conductive sphere of mercury encompasses two contacts at zero gravity but flattens away from the upper contact under the influence of gravity. Also known as weightlessness switch.
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