条件: condition; term; factor密度: density; thickness条件密度函数: conditional density function锻件密度: forgings density元件密度: component de ity; component density等效元件密度: equivalent component density条件性密度: conditional density条件概率密度: conditional probability density条件概率密度函数: conditional probability density function文件密级: classification组合件密封: assembly tight摄影密度测量的光谱条件: spectral conditions for measuring photography density未知条件的密度函数: unknown conditional density function油层条件下油的密度: reservoir oil density启、阀件密封面: blowdown sealing face原始文件密钥: primary file key运动件密封圈: moving seal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 光电元件密封电池: sealed cell摄影反射密度测量的几何条件: geometric conditions for photographic reflection density measurement摄影透射密度测量的几何条件: geometric conditions for measuring transmission density条件: 1.(客观的因素) condition; term; factor 工作条件 working conditions; 生活条件 living conditions; 贸易条件 terms of trade; 自然条件 natural conditions; 利用有利条件 make use of the favourable factors; 根据自己的条件做某事 do sth. on one's own terms; 在这[那]种条件下 on this [that] condition; 在目前条件下 under present circumstances; 有条件要上, 没有条件, 创造条件也要上。 when the conditions exist, go ahead; when they don't exist, then create them and go ahead.2.(提出的要求) requirement; prerequisite; qualification 共产党员的条件 the requirements of the party members; 提出条件 put forward the requirement; list the prerequisites; 有条件地同意 agree with qualifications; 符合入学条件 satisfy the entrance requirement; 如果三项先决条件得不到满足, 他们就拒绝谈判。 they refused to negotiate unless three preliminary requirements were met. 耐心是教学必备的条件。 patience is a requirement in teaching.; 条件刺激 conditioned stimulus; 条件反射 conditioned response; conditioned reflex; 条件反应 [动物学] conditioned response (cr); 条件句 [语言学] conditional clause电缆或光缆在特定条件下燃烧的烟密度测定: measurement of smoke density of cables burning under defined conditions : test apparatus轨密度 道密度: track density密度(光学密度): density(optical demsity)