But gravity has a remarkable property that the pull of the Earth is itself proportional to the inertia of the object.

重力有一个显著特征,即地球的引力,与物体的质量成比例

耶鲁公开课 - 基础物理课程节选

And, furthermore, that the intensity of the splitting was proportional to the intensity of the applied magnetic field.

并且谱线的分裂程度,和实验中所使用的磁场强度,是成比例的。

麻省理工公开课 - 固态化学导论课程节选

If you look at the electrical force, the force of electricity, proton and electron or something, it's not proportional to the mass of either object.

如果你考察电作用力,即电现象产生的力,质子啊,电子啊,或者其它什么东西,这种力不和物体的质量成比例

耶鲁公开课 - 基础物理课程节选

What Einstein then clarified for us was that we could also be talking about energies, and he described the relationship between frequency and energy that they're proportional, if you want to know the energy, you just multiply the frequency by Planck's constant.

爱因斯坦阐述的是我们,也可以从能量的角度来谈论，他描述频率和能量之间的关系,是成比例的，如果希望知道能量值，你用普朗克常数乘以频率就可以了。

麻省理工公开课 - 化学原理课程节选

It's proportional to the electric charge of either object.

而与物体的带电量成比例

耶鲁公开课 - 基础物理课程节选

There's no reason why these two attributes had to be proportional, but they are proportional and they are equal by choice of units and you can ask, "Is this just an accident or is it part of a big picture?"

我们不知道这两个质量为何成比例,但它们确实成比例,而且如果选择合适的单位还会相等,你会问,"这种情况纯属偶然,还是这只是物理学大体系的冰山一角"

耶鲁公开课 - 基础物理课程节选