英语词汇“principal mining level”的读音、翻译、释义、用法及例句-开邑网

词汇	principal mining level
释义	principal mining levelprincipal mining level1.■主要开采水平
随便看	salting in barrels salting in bulk selecting females selecting lever selecting machine selecting magnet selecting mechanism selecting of route selecting operation selecting perennial vegetable selecting priority selecting sap sample selecting sequence selecting single plant selecting transfer cam selecting unit selection selection advantage selection against the company selectional selection algorithm selectional relation selectional restriction selection and placement test selection approach

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