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。
Under the condition of field cultivar, studied on effects of electron treatment on the development process and yield of peanut.
在大田栽培条件下，研究了电子生物处理对花生生育进程及产量的影响。
A two electron gun method and an arrangement whereby the secondary electron emission yield of dielectric materials can be measured are introduced.
本文介绍测量绝缘介质二次电子发射系数的双枪方法，并在动态系统中进行测量。
Artificial electron acceptors increased the yield of photoactivation.
外加入人工电子受体可使光活化效率提高。
The groups in ring of benzaldehydes, no matter they are electron withdrowing or electron donating except of hydroxy, do not seem to have much effect on the yield.
羟基处于醛基邻位和对位的苯甲醛与几种苯乙酮衍生物的缩合，多数没有得到预期的产物，或收率极低；苯乙酮环上的羟基对缩合反应影响很大，羟基越多，缩合越困难。
The yield of myrtenol (II) is a little improved by electron-transfer photooxygenation with dicyanoanthracene (DCA), but is almost double by the addition of biphenyl as cosensitizer.
二氰基蒽（DCA）敏化的电子转移光氧化使桃金娘烯醇的产率略有改善，但是，添加联苯作共敏化剂使产率几乎翻了一番。
The yield of myrtenol (II) is a little improved by electron-transfer photooxygenation with dicyanoanthracene (DCA), but is almost double by the addition of biphenyl as cosensitizer.
二氰基蒽（DCA）敏化的电子转移光氧化使桃金娘烯醇的产率略有改善，但是，添加联苯作共敏化剂使产率几乎翻了一番。
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