The blending volume of negative density difference displacement is much less than that of the positive density difference displacement.

负密度差顶替时掺混量比正密度差顶替小。

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The positive electrodes are often made from lithium iron phosphate. Corvus, however, USES lithium nickel manganese cobalt (NMC) because it provides a greater energy density.

锂电池的正极一般是用磷酸锂铁制作，而乌鸦公司却使用能量密度更好地镍钴锰酸锂来制作锂电池正极。

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MAIN OUTCOME MEASURES: Positive cellular percentage, density and grayscale of heat shock protein 70 in the rats' hippocampus.

主要观察指标：大鼠海马热休克蛋白70阳性细胞百分率、密度和灰度值。

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Then we go negative and we go through zero again, which correlates to the second area of zero, that shows up also in our probability density plot, and then we're positive again 0 and approach zero as we go to infinity for r.

并且再次经过,这和，第二块等于0的区域相关联,这也在,我们的概率密度图里反映出来了，然后它又成了正的,并且当r趋于无穷时它趋于。

麻省理工公开课 - 化学原理课程节选

While West has observed a positive power law in that the demand for roads and gas stations also decline as density increases, sooner or later that has to end.

FORBES: One Man's Slum Is Another Man's Manhattan