drillrig

常見例句

• Keywords deep-hole drillrig;deep-hole step blasting;filling passes;
  深孔鉆車;深孔分段爆破;充填井;
• Keywords drillrig;wear parts;ferro spectrum analysis;replacement interval;grey prediction;
  鉆機(jī);易磨損件;鐵譜分析;更換時間間隔;灰色預(yù)測;
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