密度

• That is, all nuclei have approximately the same density .
  就是说，所有原子核都几乎有相同的密度。
• Mass flow information can be secured by using a densitometer .
  质量流量的数据可借助于密度计而获得。
• Since it is the probability density, it must be single-valued .
  因为它是几率密度，因此必须是单值的。
• We say the gas becomes ideal in the zero-density limit .
  我们说在零密度的极限条件下，气体变成理想的。
• Most galaxy associations are small and have a low density contrast .
  大多数星系协是小的，密度反衬低。
• A relationship exists between tree density and fruit yields .
  植株密度和果实产量之间存在一种相关关系。
• In this definition, the contrast is given by the ratio of two light densities .
  对比度定义为两个光密度之比。
• The optimum density is difficult to specify in terms of trees per acre .
  很难定论究竟每英亩多少株树为最适密度。
• What is left after an explosion is a dwarf star of extraordinary density .
  爆炸后所留下的是一个密度巨大的矮星。
• We get a buildup of electronic probability density between the nuclei .
  我们得到在两个核间的电子几率密度的堆积。