词汇“采掘比例关系 balance between tunneling and mining in coal pits; ratio between cutting and tunneling;”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	采掘比例关系 balance between tunneling and mining in coal pits; ratio between cutting and tunneling;
释义	见:采掘: 采掘比例关系 balance between tunneling and mining in coal pits; ratio between cutting and tunneling;
随便看	spark breakdown spark catcher spark chamber spark circuit spark-coil spark coil leak detector spark control lever spark counter spark cutting spark discharge spark-discharge forming spark discharger spark distance spark distributor spark erosion spark erosion fabrication spark erosion machine spark erosion technique sparker survey spark excitation spark-extinguishing spark extinguishing spark failure spark formation spark-gap

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