| 释义 |
secondary emission 释义 [物] 二次发射 [电子] 次级发射 二次放射 例句 1·An electrode used in certain electron tubes to provide secondary emission . 中间极,二次发射电极一种用于一定电子管作第二次发射电极。 2·The paper summarized the development of the theory about the secondary emission . 本文简述了次级发射的理论研究。 3·The experimental results show that adding rare earth oxide into molybdenum can improve the secondary emission coefficient of the emitter. 实验结果表明,在钼中添加稀土氧化物可以提高发射体的次级发射性能。
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