奇葩剧汉英词典

percussive machine drilling

P 开头单词

常见例句

    双语例句

  • Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor.
    借鉴凿岩机的转钎机构，利用活塞的回程能量带动钻头旋转。
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