It is the mass of the electron.

它指电子的质量。

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Square of the Planck constant times pi mass of the electron.

普朗克常量的平方,乘以π再乘电子的质量。

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If you look up really close, there is the elementary charge e.There is the mass of the electron.

如果你仔细找的话，会找到e表示的元电荷，也能找到电子的质量。

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And this is just a Newtonian expression of momentum, the product of the mass of the electron times its instant velocity.

这只是牛顿学上关于动量的表达，用电子质量,乘以瞬时速度。

麻省理工公开课 - 固态化学导论课程节选

We can make some substitutions here using some of the derivation on the previous board which will give us the Planck constant divided by 2 pi mass of the electron times the Bohr radius.

在这里我们也可以,用我以前在黑板上写过的一些词来取代它,得到的是普朗克常数除以2π电子质量,再乘以波尔半径。

麻省理工公开课 - 固态化学导论课程节选

I mean, the atom has a tiny mass, too, but what we are saying is compared to the totaled atomic mass, the mass of the electron is tiny.

我的意思是，原子的质量也很小，但是我们说的是,和整个原子质量相比，电子的质量是很小的。

麻省理工公开课 - 固态化学导论课程节选

And that resistance is what we, in our big everyday world, think of as the mass of the electron.

CNN: Scientists more certain that particle is Higgs boson

The AMS paper will report the positron-electron ratio in the mass range of 0.5 to 350 Gigaelectronvolts.

BBC: Alpha Magnetic Spectrometer to release first results

Both indicate that, if what they have seen really are Higgses, then the boson has a mass of about 125 giga-electron-volts (GeV), in the esoteric units which are used to measure how heavy subatomic particles are.

ECONOMIST: The Higgs boson: Fantasy turned reality | The