硬砂巖鉆頭 的英文怎麼說

中文拼音 [yìngshāyánzhēntóu]
硬砂巖鉆頭 英文
core-barrel bit
  • : 形容詞1 (堅硬) hard; stiff; tough 2 (剛強; 堅定; 強硬) strong; firm; tough; obstinate 3 (勉...
  • : 名詞(沙子) sand; grit
  • : 名詞1. (巖石) rock 2. (巖峰) cliff; crag
  • : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
  1. Drill efficiency could be promoted sharply in penetration of high - medium hard sand rock rock formation. its wings are of higher wear resistance and impact efficiency. to repeat repair grind are not necessary

    大幅提高中進效率,刀翼耐磨抗沖擊性強,不需反復修磨,壽命長。
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