研究人员发现在啮齿类动物中有一种被称为27-羟基胆甾醇或27HC的小分子，它可与心脏血管内的雌激素受体结合。
The researchers found that in rodents, a molecule called 27-hydroxycholesterol, or 27HC, binds to the same receptors in the blood vessels of the heart to which estrogen binds.
由于管径小，工质流动速度快，可以不考虑管内两相工质间的相互作用。
Because of short diameter and fast flow of fluid, effect between the two-phase fluids can be ignored.
你什么有效的偏微分方程做的是不断掀起一小负责高科技金属管内爆炸。
What you're effectively doing with a PDE is repeatedly setting off a small charge of hi-explosive inside a metal tube.
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