When the Universe was still ionized, prior to recombination, it was opaque.

当宇宙还处于电离状态时，在重组之前，它是不透明。

Gas molecules emitted by the comet get ionized by the Sun's ultraviolet light.

彗星释放气体分阳紫外线电离。

The growing radiation from those first stars ionized hydrogen atoms, split them back into protons and electrons.

随着初代恒星发出辐射越来越大，电离氢原再次分解为质和电。

If you paid attention, you learned how pure water ionizes to form hydronium and hydroxide ions in reversible reactions.

也会出现0以下或是14以上时候但那只会出现在些极端条件下。

These sand-sized particles emit ionizing radiation, capable of separating electrons from molecules and atoms.

这些沙粒大小微粒发出离辐射，能够使分和原电离。

This ionizing radiation has enough energy to rip electrons from atoms.

这种电离辐射有足够能量把电从原中剥离出来。

If you were on the surface, you'd be a vaporized and ionized smear.

如果你在其表面上，你将会是蒸发和电离污迹。

And all those atoms are ionized: they either lose an electron or gain one to give them a charge.

它们要么失去电，要么得电，从而得电荷。

There are also other environmental risk factors like ionizing radiation, like from chest X-rays and CT scans.

还有些环境因素如胸部X线或CT扫描等电离辐射，也是高危因素。

Under those conditions, hydrogen is completely ionized, which means the electrons in the atoms are stripped from their protons.

在这种条件下，氢完全电离，这意味着原中电从质边剥离出来。

We ate really well there, because you need to keep your strength up to fight the ionizing radiation.

我们吃得挺不错，因为你得精力充沛地跟离辐射奋战。

One way scientists compare ionizing radiation exposure is a unit called the sievert.

科学家们区别电离辐射暴露方法是种叫西韦特单位。

This might happen when too much ionized calcium is excreted.

当过多钙离排出体外时，可能会发生这种情况。

All nuclear radiation is ionizing, while only the highest energy electromagnetic radiation is.

所有核辐射都是电离，然而电磁辐射只有最高能量才是。

This is known as ionizing radiation because an atom that has lost or gained electrons is called an ion.

这叫做电离辐射因为已经失去或得电原叫做离。

Ionizing radiation tears the cellular structure apart.

电离辐射会破坏细胞结构。

Low levels of ionized calcium affect a variety of cellular processes, in particular, electrically active neurons.

低水平离钙会影响多种细胞过程，特别是神经元电活动。

Fortunately, acute exposures are rare, but we are exposed daily to lower levels of ionizing radiation from both natural and man-made sources.

幸运是，急性暴露很少见，但我们每天都暴露在较低级电离辐射下既来自于自然，也来自于人造物质。

When energized wires strip negatively charged electrons from the air ionizing the molecules that move toward negatively charged electrodes at the planes tale.

当能量形成导线剥离空气中带负电荷电时，就使平面上朝着带负电荷电极移动分成为电离。

The phosphate binds to the ionized calcium and forms calcium phosphate, making it insoluble and effectively decreasing the total amount in blood.

磷与钙离结合形成磷酸钙，使其不溶于水，并大大减少血液中总钙量。