“mercury-wetted reed switch”的概念、定义、翻译、参考文献-科学参考

单词	mercury-wetted reed switch
释义	mercury-wetted reed switch [`mǝr·kyǝ·rē ¦wed·ǝd `rēd ´swich] ^ELECTRICITY A reed switch containing a pool of mercury at one end and normally operated vertically; the contacts on the reeds are covered with a mercury film by capillary action; each operation of the switch renews this mercury film contact, thereby increasing the operating life of the switch many times.
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