The results show that backward electron emission yield deviates from inverse cosine law, due to the role of the valence electrons of H2 +.
研究发现背向的电子发射产额不满足余弦关系，这是由于H2 +上的价电子所引起的。
But our domestic use, low energy consumption and high emission vehicles, backward production tools, production technology, production process, because we have a large number of cheap labor.
但我们国内所使用的还是高排放、低能耗的运输工具，落后的生产工具、生产技术、生产工艺，就因为我们有着大量低廉的劳动人口。
Under continuous wave pumping, backward amplified spontaneous emission output power (ASE-) rapidly increases to peak value, and then decreases monotonically to steady-state value.
在连续波泵浦下，反向自发辐射输出功率（ASE-）首先快速地增加到峰值功率，然后单调下降到稳态值；
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