“permanent pump”的概念、定义、翻译、参考文献-科学参考

单词	permanent pump
释义	permanent pump [`pǝr·mǝ·nǝnt `pǝmp] ^{MINING ENGINEERING} A pump on which the mine depends for the final disposal of its drainage.
随便看	ecdemite ecdysis ecdysone E cell E center ecesis ECG ecgonine echelette grating echelle grating echelon echelon faults echelon grating Echeneidae echidna Echinacea echinate Echinidae Echiniscoidea echinococcosis Echinococcus echinococcus cyst Echinocystitoida Echinodera Echinodermata

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