1)wet drilling,湿式钻眼2)dry and wet drill holes,干式与湿式钻眼3)wet rotary drilling,湿式旋转钻眼4)dry drilling,干式钻眼5)wet type drilling hole,湿式打眼6)wet type drilling,湿式钻孔
用法和例句
This paper narrates the wet type drilling hole way of external spraying water_electric interlock electric coal drill, gets good dust_free effect by field test.