Further experiments to confirm that neutrinos have mass could help physicists determine which, if any, of these theories is correct.

进一步证实中微子有质量的实验可以帮助物理学家确定这些理论中哪一个（如果有的话）是正确的。

youdao

They're different because they don't exist behind a screen; they're in our world, built from real physics, not simulations, they have mass and velocity and smell.

他们的与众不同之处在于他们不存在于屏幕里面，他们就活生生地存在在我们的世界里，是被真实的物体组成的，而不是模拟，他们有重量、速度和气味。

youdao

It has no size, but it does have mass, - and it has a lot of mass — three times the mass of the sun, ten times the mass of the sun, a hundred times the mass of the sun.

但是它有质量，而且质量很大，是太阳质量的三倍-，太阳质量的十倍，太阳质量的百倍，它有质量，没有尺寸。

youdao

In this project,scientists hope to prove that neutrinos have mass.

VOA: special.2009.07.21

If the atom is fixed mass, the electron is tiny, It must be the positives have all the mass.

如果是原子质量一定，电子很小，带正电荷的部分几乎占据了全部质量。

麻省理工公开课 - 固态化学导论课程节选

We have a table of the elements with properties varying periodically with atomic mass, so we compress all of that information and refer to it as the Periodic Table.

我们有一个元素表，其中的元素的特性,随着原子质量的改变而引起周期性的变化，所以我们将所有的信息精简,将它变成一个周期表。

麻省理工公开课 - 固态化学导论课程节选

Urban planners advise that cities with populations of more than 2 million should have mass transit systems.

FORBES: Delhi's Subway Builder

It explains why other particles have mass, but, despite decades trying, no-one has yet detected it.

BBC: No extra time for US particle lab

The Higgs is the key to unlocking the question: Why does matter have mass?

CNN: Higgs and the holy grail of physics