1.
An instrument for determining the weight and density of air or another gas.
气体比重计测定空气或其他气体的重量及密度的仪器
2.
pycnometer test
液体比重计测定比重
3.
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
4.
Edmond's balance
爱德蒙气体比重天平
5.
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
6.
gas proportional scintillation counter
气体正比闪烁计数器
7.
gas isotope ratio mass spectrometer
气体同位素比质谱计
8.
hydrometer with pipette
带吸量管的液体比重计
9.
Hydrometer: An instrument used for measuring the specific gravity of a liquid or solution.
比重计:量度液体或溶液的比重的仪器。
10.
thermometric hydrometer
带有温度计的液体比重计
11.
a hydrometer that includes a thermometer.
含有温度计的液体比重计。
12.
There are several kinds of gas in the air, with nitrogen amounting to the most part.
空气中有好几种气体, 氮所占的比重最大。
13.
It is a colourless, odourless and tasteless gas, slightly heavier than air.
它是一种无色、无溴、无味的气体，比空气稍重。
14.
Nitrogen makes up the major portion of the atmosphere (78.03% by volume, 75.5% by weight).
氮构成了大气的大部分（体积比78.03，重量比75.5%）。
15.
hydrometer of constant immersion
变浮比重计浮比重计
16.
An instrument, such as a hydrometer, used to determine the amount of alcohol in a liquid.
酒精比重计一种如液体比重计的仪器，用来测定液体中酒精的含量
17.
In actual practice, a constant-volume gas thermometer is more convenient to use than a constantpressure one.
在实践中，用恒体积的气体温度计比用恒压气体温度计更方便。
18.
Influence of stoichiometry of reacting gases on the overshoot behavior of PEMFC
反应气体化学计量比对PEMFC超调的影响