drill up向上挖掘drilln.钻孔机；钻子；反复操练；播种机v.练习；钻孔；(军事)训练drilling fluid resistivity井液电阻率drilling-blasting method钻爆法drilling mud metering pump钻井泥浆计量泵drilling lubricating agent钻探润滑剂drill - hang cultivating穿耳开放式养殖drilling technology design钻井工艺设计Drilling wood to make fire钻木取火drill hole geologic record钻孔地质编录drilling-bit improvement钻头改进drilling path optimization钻孔路径优化