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- density hydrometer 密度比重计
- Determination of density or relative density.Pressure hydrometer method. 英文名称： Liquefield petroleum gas and light hydrocarbons.
- The density of population in this city is very high. 这个城市的人口密度非常高。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer, Method of Test for (05. 用压力比重计测定轻烃类的密度或相对密度的试验方法(05。
- A hydrometer for measuring the specific gravity of urine. 尿比重计衡量尿的比重的液体比重计
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
- The population density is evened out. 种群密度亦趋于均匀化。
- Density exceeded 100 nests per mile. 丝巢密度超过每英里100巢。
- Do you know the density of population in this area? 你知道这个地区的人口密度吗?
- This wave of excess density is sound. 这种过剩密度的波就是声波。
- The density logger consists of a radiation source. 密度测井仪包括辐射源。
- Methods Investigating the rodent density by ELTON. 方法用ELTON夹夜法对鼠密度进行调查。
- By the charge density we mean the per unit volume. 所谓的电荷密度是指单位体积的电荷。
- The entropy density is constant ahead of the shock. 冲击波前方的熵密度是恒定的。
- The driver had to stop because the density of the fog made it difficult to see. 由於浓雾使道路很难看清,司机不得不停车。
- A hydrometer used to determine the specific gravity of acid solutions. 酸液比重计用来测定酸液比重的液体比重计
- Mercury has a much greater density than water. 水银的密度比水大得多。
- Yarn number is a measure of linear density. 纱线细度是纱线线密度的一种度量方法。
- Baume hydrometer Hydromter for industrial use, invented by the French chemist Antoine Baume, to determine the specific gravity (relative density) of liquidss. 波美比重计工业用的比重计。是法国化学家安东尼波美的发明,用来测量液体的比重(相对密度)。
