分离: separate; sever; resolve; se ...密度: density; thickness电离密度: density of ionization; ionization de ity; ionization density体电离密度: volume ionization density游离密度: density of ionization; ionization density低密度分离: low-density cut密度分离: density fractionation; density separation密度分离法: density fractionating; density fractionation; density separation密度分离;比重分离: density separation密度梯度分离: desity gradient separation密度梯度分离,密度梯度分离法: density gradient separation分液器(分离不同密度的液体): triturium密度梯度离心分离法: density gradient centrifugation密度: 1.(密集的程度) density; thickness 火力密度 density of fire; 兵力密度 density of troops; 那个国家的人口密度为每平方英里685人。 the population density of that country is 685 per square mile.2.[物理学] (物体的质量和其体积的比值) density 电流密度 current density; 海水密度 seawater density; 水银的密度比水大得多。 mercury has a much greater density than water.; 密度计 densimeter; densitometer; density gage; density indicator; gravitometer 分离: 1.(分开) separate; sever; resolve; segregate; isolate; detach; dis(as)sociate; abstrict 从空气中把氮分离出来 separate nitrogen from air; 男女生分离的教育制度 an educational system where boys and girls are segregated2.(离别) part (for a long period); leave; bid farewell 我见到了分离多年的朋友。 i met an old friend from whom i had parted for many years.3.separation; severance; segregation; isolation; disassociation; demixing; detachment; diastasis 长期分离之后 after a long separation; 与朋友们分离使他伤心。 separation from his friends made him sad轨密度 道密度: track density密度(光学密度): density(optical demsity)体密度, 卷密度: volume density分离法分离: isolation分离分离: isolation分离器,分离塔: separatorschnirelmann密度: schnirelmann densityγ密度: gamma density靶密度: target density保密度: secrecy