The invention relates to an inductance device which belongs to the technical field of electron components.
一种电感装置，属于电子元器件技术领域。
Cleaning Objects: to clean the colophony on electron components and grease on precision machinery components, dirt on watchband or watch rind and so on.
适用于清洗电子零件及线路板上的松香、精密机械零件的油脂、表带表壳的污垢等等。
This report summed up the new achievements made in electron tubes, semiconductors and components.
本报告总结了电子管、半导体和元件三方面的新成就。
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