磨刀砂巖 的英文怎麼說

中文拼音 [dāoshāyán]
磨刀砂巖 英文
farewell rock
  • : 磨動詞1 (摩擦) rub; wear 2 (研磨) grind; mull; polish 3 (折磨) grind down; wear down [out]:...
  • : Ⅰ名詞1 (切、割、削、砍、鍘的工具) knife; sword 2 (形狀像刀的東西) sth shaped like a knife 3 ...
  • : 名詞(沙子) sand; grit
  • : 名詞1. (巖石) rock 2. (巖峰) cliff; crag
  • 磨刀 : sharpen; stoning
  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

    大幅提高中硬的鉆進效率,翼耐抗沖擊性強,不需反復修,鉆頭壽命長。
分享友人