basic bore systembasic hole systemhole base systemhole basishole-basic system of fitshole-basis systemunit bore system基: base; foundation孔: hole; opening; aperture制: make; manufacture基孔制裝配系統(tǒng): hole-base assembly system基孔: basal orifice; base bore; basic bore; basic hole system; datum hole; hole basis下載手機詞典可隨時隨地查詞查翻譯