“triple entry”的概念、定义、翻译、参考文献-科学参考

单词	triple entry
释义	triple entry [`trip·ǝl `en·trē] ^{MINING ENGINEERING} A system of opening a mine by driving three parallel entries as main entries.
随便看	steam valve steam washer steapsin stearamide stearate stearic acid stearin stearyl alcohol steatite steatization Steatornithidae steatorrhea Steckel rolling S tectonite STED steel steel bronze steel-cable conveyor belt steel-case steel-clad rope steel converter steel emery steel engraving Steelflex coupling steel foil

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