常見(jiàn)例句

雙語(yǔ)例句

• Select drill bit according to the drillability of rock, and use them in turn in conformity to certain sequences, rationally control hourly efficiency and hoisting interval;
  三是根據(jù)鉆遇巖石的可鉆性級(jí)別選擇鉆頭，按照一定順序依次使用，并合理控制時(shí)效及提鉆間隔；
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