“tunnel system”的概念、定义、翻译、参考文献-科学参考

单词	tunnel system
释义	tunnel system [`tǝn·ǝl ´sis·tǝm] ^{MINING ENGINEERING} A method of mining in which tunnels or drifts are extended at regular intervals from the floor of the pit into the ore body.
随便看	bottom fermentation bottom flow bottom hold-down bottom hole bottom-hole assembly bottom-hole cash bottom-hole choke bottom-hole packer bottom-hole plug bottom-hole pressure bottom-hole pressure bomb bottom-hole pump bottom-hole samples bottom-hole separator bottom-hole temperature bottom ice bottoming drill bottomland bottom load bottom loading pressure bottom moraine bottomonium bottom pillar bottom quark bottom rot

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