density function gradient materials [機(jī)械工程]密度功能梯度材料density function [數(shù)][統(tǒng)計(jì)] 密度函數(shù)density floppy disk drive [動(dòng)力與電氣工程]單麪雙密度軟磐機(jī)density field 密度場(chǎng)density distribution [統(tǒng)計(jì)][數(shù)] 密度分佈density defect [材料科學(xué)]密度缺點(diǎn)density current [水利] 異重流；[海洋] 密度流density bottle method 比重瓶法density bottle [物] 密度測(cè)定瓶density biased sampling [計(jì)算機(jī)科學(xué)技術(shù)]密度偏差抽樣density (n.) density n.密度；濃度；比重densitometry n.密度測(cè)定法(顯象測(cè)密術(shù)；測(cè)光密度術(shù))densitometer n.光密度計(jì)；比重計(jì)；密度計(jì)densities of camping site [地球科學(xué)]營(yíng)地密度densities n.密度；濃度；比重densimetric n.比重計(jì)；密度計(jì)densimeter (n.) densimeter n.比重計(jì)；密度計(jì)densilog n.密度測(cè)井