词汇	封爐
释义	封爐 fēng lú古时称将炉火熄了为「封炉」。
随便看	variable speed doubly-fed wind generator variable speed drive variable-speed drive variable speed drive device variable-speed drive device variable speed drive gear variable speed drive gearing variable speed drive motor variable speed drive unit variable speed drive unit, hydrostatic variable speed electric drive variable-speed electric submersible pump variable speed engine variable-speed engine variable-speed-eonstant-frequeney variable speed feed variable speed feed roll variable-speed feed roll Variable speed feedwater pump variable speed flat belt variable speed fluid coupling variable speed fluid couplings variable-speed fluid drive variable speed friction wheel variable speed gear