It will be a particle with a positive charge and a positive mass.

它将是一个带着正电荷和正质量的粒子。

youdao

They had the evidence before their eyes for these new particles with positive charge and the same mass as the electrons, but they were just unable to appreciate what they saw.

那些带有正电荷且质量与电子相等的粒子存在的证据就在他们眼前，但他们却没能对他们所见到的东西有所鉴别。

youdao

A subatomic particle with the same mass as the electron but positive charge (it is the antiparticle of the electron).

与电子的质量相等但带正电荷的亚原子粒子(是电子的反粒子)。

youdao

He could divide all of that by the absolute value of the charge of the positive particle, all over the mass of the positive particle.

他可以把这整个,除以正电粒子的,电荷绝对值除以，正电粒子的质量。

麻省理工公开课 - 化学原理课程节选

That quantity in parenthesis, I have a mass which is a positive number. Something raised Something raised to the fourth power has got to be positive.

顺便说一句,质量这个量是个正数,四次方的值,肯定是正数。

麻省理工公开课 - 固态化学导论课程节选

This is where most of the mass resides and the positive charge resides.

原子的质量和正电荷,大都集中在这里。

麻省理工公开课 - 固态化学导论课程节选

Mass balance was slightly positive 70 mm w.e.

UNESCO: Dublin Core

The fact that the Libyan government took actions to rid itself of weapons of mass destruction was obviously a positive thing.

WHITEHOUSE: Press Briefing

Mass balances during hydrological years were positive in 2000, negative in 2001 and near equilibrium in 2002.

UNESCO: Dublin Core