From that measurement they were able to estimate the abundance of ordinary hydrogen, which makes up the bulk of the disk.

通过测量，他们能估算出普通氢气的密度，而普通氢气是组成星云的主要成分。

They used microwaves to nudge the anti-atoms, to see if they behave when nudged like mirror images of ordinary hydrogen atoms.

他们使用微波轰击反氢原子，并观测这些原子在轰击过程中的表现是否与普通氢原子的表现互成镜像。

Its fuels are boron (five protons and six neutrons) and ordinary hydrogen, both plentiful.

它的燃料是硼（五个质子和六个中子）和普通的氢，两者都很丰富。

Water molecules made of heavier deuterium instead of ordinary hydrogen are known, straightforwardly enough, as heavy water.

由较重的氘而不是普通的氢组成的水分子被称为重水， 直截了当。

Bombard an ordinary hydrogen atom with microwaves of the right frequency and you will lift it out of its ground state by flipping the spin of its electron.

以特定频率的微波轰击普通氢原子可以反转其中电子的自旋，使其跃迁离开基态。

It has a neutron in its nucleus as well as the hydrogen defining singleton, proton, Like ordinary hydrogen deuterium can react with oxygen to yield water known.

它的原子核中有一个中子以及氢定义单子， 质子，像普通的氢氘一样可以与氧气反应产生已知的水。

An oxygen atom in water is just an oxygen atom, but hydrogen comes in two forms: ordinary hydrogen (with a single proton in its nucleus) and deuterium (with a proton and a neutron).

水中的氧原子只是一个氧原子， 但氢有两种形式：普通氢（原子核中有一个质子）和氘（有一个质子和一个中子）。