direct breakage

常見例句

雙語例句

• The drill bit is a direct tool for rock breakage. The rate of penetration is closely related with the drill bit as well as the mechanical properties of the rocks.
  鉆頭是直接破碎井底巖石的工具，鉆井速度的快慢不僅與鉆頭有關，而且與所鉆巖石的力學性質密切相關。
  lib.swpu.edu.cn
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