mass concentration

常见例句

The particle mass concentration rises with the increase of particle diameter.
飞灰质量浓度随着颗粒粒径的增大而增加。
The better result of refining and dewaxing was achieved by using the ethanol solution with mass concentration of 70%.
本文采用质量浓度为70%的稀乙醇进行精制除蜡，效果较佳。
The stellar orbits in the galactic centre show that the central mass concentration of four million solar masses must be a black hole, beyond any reasonable doubt.
银河系中心恒星的运行轨道表明，这个有4亿个类似太阳系的天体围绕的中心体一定是一个黑洞，这是毫无疑问的。

No one has ever forcibly moved that many people without concentration camps and mass death through plague.
FORBES: The Republican Party Needs A Reset On Immigration
In an article last month in Forbes, Reza Kahlili, a former CIA spy in the IRGC who maintains connections inside the regime, claimed that the IRGC has set up concentration camps throughout the country in anticipation of mass arrests in any future opposition campaign against the regime.
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Most had escaped from hidden concentration camps where they suffered and witnessed routine torture, mass-execution, baby-killing, rape, human biological experiments (including the effects of anthrax) and, of course, starvation.
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