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Apr 19, 2010 · 关注. 展开全部. specific weight = weight/volume就是比重,单位是 (N/m^3或者 lb/ft^3). 而gravity 指的是地心引力,所以不是用力来算的,而是用密度,所以,. specific gravity=density /density of water @4 摄氏度,可翻译为相对密度,,没有单位(无量纲)。. 扩展资料:. 一 ...
May 21, 2022 · 换句话说,这便是题主所找到的其中一个定义"比重是物体所受重力和其体积的比值" 的由来。. Specific Gravity (SG),又称Relative density,即相对密度,乃物质与的密度与特定参照物的密度的比值。. 参照物默认为处于4摄氏度的液态水的密度。. 公式为SG=ρ (sample)/ρ ...
Jul 24, 2006 · specific gravity: 比重. 例句与用法: 1. 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。. 英英解释: 名词specific gravity: 1. the density of a substance relative to the density of water.
specific gravity. na. (=relative density) 比重;密度;尿比重. 例句. 1.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。. 2.However, in another book, I found a graph showing yeast cell population growth and specific gravity plotted against ...
意思是:比重。. 1、Their specific gravity in the human species results from something more than a combat. 他们在人类中的比重不取决于一场战事的结果。. 3、The unit of machine especially suit for packaging of material of different shape and specificgravity and chips type material without powder .
May 15, 2020 · 比重简写为s.g.两者区别:. 1、表示含义不同:. (1)密度是对特定体积内的质量的度量。. 密度的定义是物体的质量除以体积。. (2)相对密度是指物质的密度与参考物质的密度在各自规定的条件下之比。. 符号为d,无量纲量。. 一般参考物质为空气或水:当以 ...
比重 specific gravity 也称相对密度,固体和液体的比重是该物质的密度与在标准大气压,3.98℃时纯H2O下的密度(999.972 kg/m3)的比值。对于气体是指气体的分子量同空气的分子量 (28.9644)的比值。液体或固体的比重说明了它们在另一种流体中是下沉还是漂浮。
Mar 15, 2016 · 体比重. 容重. 短语. dry bulk specific gravity 干松比重. saturated surface-dry bulk specific gravity 表干相对密度. bulk specific gravity of coarse aggregate 集料毛体积相对密度. 本回答由提问者推荐. 抢首赞. 评论.
Jan 10, 2011 · 2015-02-16 specific gravity是什么意思 2008-08-30 看看你的英语水平 2015-03-27 specific gravity是什么意思 2 2015-05-04 relative density是什么意思 3 2006-07-24 specific gravity是什么啊? 8 2005-09-24 请问什么是"比重",它和"密度"有什么关系? 106 2016-03-15 bulk specific gravity是什么意思
Feb 4, 2020 · The force of gravity is the weakest at the equator because of the centrifugal force caused by the Earth's rotation and because points on the equator are furthest from the center of the Earth. The force of gravity varies with latitude and increases from about 9.780 m/s2at the Equator to about 9.832 m/s2at the poles.