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drill -steel sharpener钻头磨锐机, 磨钎机; 锻钎机; 磨钻器drilling string dynamics钻柱动力学Drilling of femoral head股骨头钻骨术drilling core graduation岩心刻度drilling geologic design钻井地质设计drilling perfusion stake钻孔灌注桩drill-motor rotor vane钻孔转子叶片Drilling cuttings weight钻屑量drilling stem flexuosity钻柱弯曲Drilling occlusive piles钻孔咬合桩