木星的行星有非常厚的大气层，且由不同数量的氢、氦、甲烷和氨等元素组成。
The Jovian planets have very thick atmospheres consisting of varying amounts of hydrogen, helium, methane, and ammonia.
针对氢氟烃排放的新项目数量正在减少，因为可供安装清洁设备的工厂已所剩无几。
The number of new projects targeting HFC emissions is falling as developers run out of factories in which to install the cleaning equipment.
所以举例来说，如果我们看氩的2s轨道，它有相同数量的节数,和相同类型的节点,对于氢的2s轨道。
So, for example, if we look at the 2 s orbital of argon, it's going to have the same amount of nodes and the same type of nodes that the 2 s orbital for hydrogen has.
氢原子的报告数量(HOH中表示为H1和H2)比较低，因为检测氢需要非常高的分辨率，而且也不总是能够获得结果。
The reported number of hydrogens, denoted by H1 and H2 for HOH, is low because detecting hydrogens requires a very high resolution that is not always achieved.
氢分子(H2)在初生云周围散射热量，因此我们要知道在初生云中氢分子的数量。
Molecular hydrogen (H2) radiated the heat out of the clouds, so we need to know how much H2 was in the cloud.
他们计算出这种星体的数量是我们“主星序星体”的两倍。我们的太阳就属于“主星序星体”，现在仍然通过燃烧氢燃料发光。
They calculated that they could be almost twice as common as "main-sequence stars" - such as our own Sun - which are still burning through their hydrogen fuel stock.
而分解出氢的效率以重量计算可比其它太阳能热制程的效率高出一个数量级。
The gravimetric hydrogen production rate exceeds that of other solar-driven thermochemical processes by more than an order of magnitude.
应该增加混合燃料汽车的数量，但我个人认为氢燃料才是世界需要的具有突破意义的科技应用。
We should certainly increase hybrid ownership, but I believe that hydrogen fuel cells are the breakthrough technology we need.
在该机制之下，单一减排数量最大的是某些工业气体，如制冷剂的副产品氢氟碳化物。
The greatest single reducer of emissions under the CDM, is the elimination of certain industrial gases – such as hydrofluorocarbons, a by-product of refrigerants.
氢呼气试验诊断乳糖吸收障碍：呼气样本的数量和时间的重要性。
Hydrogen breath test for diagnosis of lactose malabsorption: the importance of timing and the number of breath samples.
只可惜消除硫酸盐不仅使藻类细胞的工作速度减慢，而且大大减少了氢的数量。
Unfortunately, removing the sulfate also makes the algae's cells work very slowly, and not much hydrogen is produced.
苯的检出限低至1 p g，优于配备氢火焰检测器的实验室气相色谱仪两个数量级。
The detection limit is as low as 1pg for benzene, two orders of magnitude better than the gas chromatograph with FID.
另外，由于气相中高度复合的缘故，提高气压可减少原子态氢的数量。
Additionally increasing the gas pressure reduces the amount of atomic hydrogen due to higher recombination in the gas phase.
既然已经证实并承认任意数量的原子，量子化学无法解释为什么氢和水的分子仅有两个原子；
Quantum chemistry cannot explain why the Hydrogen and water molecules have only two atoms, since it has been proved to admit an arbitrary number of atoms;
既然已经证实并承认任意数量的原子，量子化学无法解释为什么氢和水的分子仅有两个原子；
Quantum chemistry cannot explain why the Hydrogen and water molecules have only two atoms, since it has been proved to admit an arbitrary number of atoms;
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