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Mohrs scale is 8, specific gravity is 5.6-6.0. 无解理，摩氏硬度8，比重3.;63。
specific gravity scale 波美度, 波美比重标
An instrument used to measure specific gravity. 比重计用于测量比重的仪器
Granted the weight and the specific gravity of a body, we can calculate its volume. 假设已知一个物体的重量和比重，我们就能算出它的体积。
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
Having relatively high density; having a high specific gravity. 比重较大的浓度相对较重的；重力大的。
An instrument used to measure density or specific gravity. 比重计，浓度计用于测量密度或特定重量的仪器
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
Magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C. 镁是一种轻金属，在20摄氏度时的比重为1.;74。
Specific gravity is the ratio of the density of a substance to the density of water. 比重是某物质的密度与水的密度之比。
The clinician is best guided by evidence of a water diuresis as indicated by observation of the urine specific gravity. 临床上最好的办法是通过观察尿的比重作为水利尿的指示。
Granted the weight and the specific gravity of a body,we can calculate its volume. 假设已知一个物体的重量和比重，我们就能算出它的体积。
Once the desired specific gravity is established, the same strength must be used henceforth. 所需的比重一经确定，以后就必须使用同一浓度的酸。
Zinc powder is a kind of deep gray powder, which consists infinitive form of circular particle, specific gravity 7. 本品为深灰色粉末,由不定形或圆状颗粒组成,比重为7。
In this range, the pressure drop increases in proportion to the specific gravity of the mixture. 在这个范围内压力差的增加与深水的比重成比例。
The specific gravity of a material is the ratio of its density to that of water and is therefore a pure number. 物质的比重指的是物质的密度与水的密度的比值，所以是纯数。
Hydrometer An instrument used for measuring the specific gravity of a liquid or solution. SeeBaume hydrometer. 量度液体或溶液的比重的仪器。参阅波美比重计。
Specific strength. The ratio of tensile strength to specific gravity for a material. 比强度:一种材料的抗拉强度与比重的比值。
To make this simpler, research workers often use specific gravity instead of density. 为了简便，研究人员常常使用比重而不使用密度。
You may tell the specific gravity of a certain object by knowing its weight in air and its weight in water. 只要知道某一物体在空气中的重量和在水中的重，你就能说出其重量。