您要查找的是不是：
- specific gravity cleaning 比重法清理
- An instrument used to measure specific gravity. 比重计用于测量比重的仪器
- Mohrs scale is 8, specific gravity is 5.6-6.0. 无解理，摩氏硬度8，比重3.;63。
- 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。
