high-vacuum electronic devices 高真空电子器件
micro-vacuum electronic devices 微型真空电子器件
microwave vacuum electronic devices 微波真空电子器件磁控管
Millimeter wave vacuum electronic devices mm波真空电子器件
gyro-electronic vacuum devices 回旋类电真空器件
The application of the residual gases analysis in high vacuum system is very important for improving the performances, the quality and the working life of various vacuum electronic devices.
高真空系统残气分析对提高电真空器件的性能、质量和寿命具有重要作用。四极质谱计与微机联用是必然的趋势。
Identifying the vacuum property of metal materials is very helpful to the manufacture of electronic devices.
鉴别电真空用金属材料真空性能的好坏，对电真空器件的生产有直接帮助。
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