行: go密度: density; thickness纵行密度: wale count飞行密度小的航线: low-density route行密: yang xingmi杨行密: yang xingmi飞行密令: blazing skies通行密钥: pass phrase key银行密押: bank test key口令;密码;通行密码: password平行密丝组织: prosenchyma上行密集交通: intense upeak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 进行密实度检验: compaction density test真菌平行密丝组织: prosenchyma单阀碟双面平行密封闸阀: parallel single disk gate ale; parallel single disk gate valve轨密度 道密度: track density密度(光学密度): density(optical demsity)体密度, 卷密度: volume densityschnirelmann密度: schnirelmann densityγ密度: gamma density靶密度: target density保密度: secrecy倍密度: double density; dual density比密度: ecificde ity; specific density