早期期间宇宙冷却到足以使一种弥漫的电中性气体云充满了宇宙的分子氢形成。
It was during the Dark Ages that the universe cooled enough to allow molecular hydrogen to form, filling the cosmos with a diffuse cloud of electrically-neutral gas.
适用介质：水、酒精、油、燃料、蒸汽、中性气体或液体、有机溶剂、酸碱溶液。
Applicable Media: Water, Alcohol, Oil, Fuel, Steam, Neutral gas or liquid, Organic solvent, Acid and Lye.
本文给出了强流相对论性电子束(IREB)在低压中性气体中传输特性的理论和实验研究结果。
Experimental and theoretical results of Intense Relativistic Electron Beam (IREB) propagation in low pressure neutral gases are presented.
但和金属不同的是，一旦切断电压，等离子便迅速地变回中性气体，因而其天线作用也就真正地“隐形”了。
But unlike metal, once the voltage is switched off, the plasma rapidly returns to a neutral gas, and the antenna, in effect, disappears.
文章导出一种由两个中性的惰性气体原子之间的碰撞引起的电四极辐射几率。
We educe a probability of the electric quadrupole emission of a photon induced by collision between two neutral atoms of inert gases.
文章导出一种由两个中性的惰性气体原子之间的碰撞引起的电四极辐射几率。
We educe a probability of the electric quadrupole emission of a photon induced by collision between two neutral atoms of inert gases.
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