The mean proportional volumes of mucous acini were more than those of serous acini except salivary glands of rodents.

除啮齿类动物外，人和其它动物粘液腺中肌上皮细胞的平均体积比高于浆液腺中者。

youdao

And then his third law was that if you take the orbital period of an ellipse, that is proportional to the third power of the mean distance to the Sun.

第三定律是，椭圆轨道的周期，和距太阳的平均，距离的，立方成比例。

youdao

By proportional sizing we mean using percentages and em units for container sizes, field lengths, font sizes, and so on wherever possible.

成比例的大小改变(proportional sizing)指的是，对于容器大小、文本域的长度、字体大小等，尽可能使用百分数和em单位。

youdao

MPs know that a more proportional system is likely to mean fewer Labour seats, so there are careers on the line.

ECONOMIST: The Jenkins recipe

He also called for a full proportional representation voting system, which he said would mean his party would come second or third in the next general election.

BBC: UKIP considers leadership hopefuls