“hearth furnace”的概念、定义、翻译、参考文献-科学参考

单词	hearth furnace
释义	hearth furnace [`härth ´fǝr·nǝs] ^METALLURGY A furnace designed to heat the charge, resting on the hearth, by passing hot gases over it.
随便看	grid-controlled mercury-arc rectifier grid-controlled rectifier grid control tube grid convergence grid course grid current grid declination grid-dip meter grid-dip oscillator grid direction grid drive grid driving power grid element grid equator grid-glow tube grid heading gridiron pendulum gridistor grid latitude grid leak grid-leak detector grid limiter grid locking grid longitude grid magnetic angle

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