英语词汇“ballast tube”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ballast tube
释义	ballast tube ballast tube [′bal·əst ‚tüb] (electricity) A ballast resistor mounted in an evacuated glass or metal envelope, like that of a vacuum tube, to reduce radiation of heat from the resistance element and thereby improve the voltage-regulating action.
随便看	waved a magic wand wave dash waved aside waved a wand waved a white flag waved down wave delta wave depression wave depth waved good-bye to waved good-bye to something waved her aside waved her down waved her magic wand waved her off waved her on waved her through waved her wand waved him aside waved him down waved him off waved him on waved him through waved his magic wand waved his wand

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