物质的

• The filter is constructed as a sandwich from three materials of different atomic number .
  屏蔽物由不同原子序数的三种物质的夹层组成。
• To this class of substance belong mica , porcelain , quartz , glass , wood , etc .
  属于这类物质的有云母、瓷器、石英、玻璃、木材等等。
• All sense-perception can occur only through the medium of some bodily substance .
  所有的感观知觉都只能通过某种身体物质的媒介才能发生。
• It has often been said that 99% of the matter in the universe is in the plasma state .
  人们经常说，宇宙中物质的99%以等离子体状态存在。
• See whether the material can be separated into its elements by boiling or freezing .
  看物质能否由于沸腾和冻结而离析为组成该物质的元素。
• Adsorption is the concentration of one substance very near the surface of another .
  吸附作用是一种物质非常接近地集中在另一种物质的表面。
• For a number of the more important species, relative concentration profiles are shown in fig .
  若干比较重要的物质的相对浓度廓线示于图中。
• No region of a positive, finite volume of matter goes into zero or infinite volume .
  物质的任何一部分正的、有限的体积都不会变成零或无穷大。
• Today there is general agreement that the nature of ordinary matter is "particulate" .
  现在大家已经普遍同意，普通物质的本性是“粒子性的”。
• The thermometers we use in everyday life are designed around this property of matter .
  我们日常生活中用的温度计就是根据物质的这种特性设计的。