1.
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。
2.
As the surface freezes, the ice floats because it is less dense than water.
当湖面冻结时，冰由于密度小于水的密度而浮在水面。
3.
Water has a density of 62.4 pounds per cubic foot.
水的密度是每立方英尺62。4磅。
4.
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。
5.
salinity, temperature, and density of sea water
海水的盐度、温度和密度
6.
Mercury has a much greater density than water.
水银的密度比水大得多。
7.
Ice is not so dense as water and therefore it floats.
冰的密度小于水，因此能浮在水面上。
8.
Survey on the Water Environment of Intensive Eel Culturing
水泥池高密度养殖鳗鲡水环境的调查
9.
Influence of Side Chain Density of Polycarboxylate Superplasticizer on Hydration of Cement
聚羧酸减水剂支链密度对水泥水化行为的影响
10.
Soil compaction may limit horizontal root extension.
土壤的紧密度能限制水平根的扩展。
11.
design density of sprinkler system
喷水灭火系统的设计密度
12.
The oil rises to the top and the water sinks because oil has a lower specific density than water.
因为油的密度小，所以油会浮在水上。
13.
Medium density fiberboard-Determination of moisture content
GB/T11718.5-1989中密度纤维板含水率的测定
14.
Spatial density and position of measured bathymetric data
已测水深数据的分布密度和位置
15.
The Influence of Population Density on the Development Level of Tertiary Industry;
人口密度对第三产业发展水平的影响
16.
Detection of Rice Density during Maturity Based on Image Processing
基于图像处理的水稻成熟期密度检测
17.
Response of Different Ploidy Winter Wheat to Moisture and Density Conditions
不同倍性冬小麦对水分和密度的响应
18.
Design of low-density cement slurry systems and applications of them in Tahe Oilfield
深井低密度水泥浆体系的设计与应用