“periodic permanent magnetic focusing”的概念、定义、翻译、参考文献-科学参考

单词	periodic permanent magnetic focusing
释义	periodic permanent magnetic focusing Encyclopedia 工学电子注聚焦释 periodic permanent magnetic focusing周期永磁聚焦采用沿电子注行进方向周期变化的磁场实现电子注聚焦的磁聚焦方式。简称PPM聚焦。
随便看	expand expandability expandable expandable casing expandable liner hanger technology expandable sand screen expandable screens completion expandable tube and bellows technology expanded expanded access program clinical trial expanded bed bioreactor expanded bed chromatography expanded community Expanded Erya expanded form expanded granular sludge bed expanded graphite Expanded Knowledge of Photography expanded neighborhood expanded organization expanded perlite Expanded Poem Selections of Eminent Monks of the Song Dynasty expanded polynomial expanded polystyrene filler expanded preliminary design

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