质子的

Therefore, many efforts have been done in the development of PEM materials with low cost and low methanol permeability.

因此，低成本且高阻醇性的质子交换膜材料成为人们研究的热点。

The scholars at home and abroad have done a great deal of investigation from every aspect in order to improve the performance of PEM fuel cell.

国内外学者为了提升质子交换膜燃料电池的性能从各方面进行了大量的探索。

The 400nm femtosecond laser photoionization and dissociation of pyridine-(water 〓 cluster was studied.

在吡啶-水团簇的质谱中同样看到了在纳秒激光下看不到的非质子化产物〓。

Moreover, the process of magnetic loop formation due to the foot point twist in the photosphere is reproduced by three-dimensional MHD numerical simulation.

考察了磁场重联时质子和电子的加速过程和轨道特征，提出拾起过程是一种有效的加速机制。

When a proton moves to a new point, a unit charge has been increased at the new point.

当一个质子从上一点移动到下一点时，下一空间点上就增加了一个单位电荷，根据现有的电动力学理论判断，会发生势的推迟。

Once the number of the positive proton and electron doesn't equalize, the particle will become positive ion.

当其中的质子与电子的数量不成等比，无法对等时，那麼粒子就会转化为正离子。

For instance, the antimatter opposite of an electron, known as a positron, is positively charged.

例如，电子的反物质就是带正电的质子。

Is a proton with the same number of the same type of atoms collectively.

是具有相同质子数的同一类原子的总称。

Now, we have to discuss the issue of there having been no big Proton blast as yet.

现在，我不得不讨论到的是它现在仍没有大的质子喷发。

Most proton storms take two or more hours from the time of visual detection to reach Earth.

大多数质子风暴采取两个或两个以上的时间，由时间的视觉检测到地球。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。