driftway

常見例句

• In the Gudan mining district of Siding Lead-Zinc Mine, development has been carried out through driftway.
  泗頂鉛鋅礦的古丹礦區(qū)采用平窿開拓,其最低開拓中段以下尚賦存有規(guī)模不大的礦體。
• Keywords Driftway transports Accident analysis Fault tree Prevention;
  平巷運輸;事故分析;故障樹;預(yù)防;
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