“sealing technique of vacuum electronic device”的概念、定义、翻译、参考文献-科学参考

单词	sealing technique of vacuum electronic device
释义	sealing technique of vacuum electronic device Encyclopedia 工学真空电子器件封离释 sealing technique of vacuum electronic device真空电子器件封离在真空电子器件排气过程终了，管内气体压强达10-5帕以下时，将器件与排气系统分开并保持密封的过程。
随便看	level traversal level trigger level zero prevention level-Ⅰ civilization level-Ⅱ civilization level-Ⅲ civilization Levenberg Levenberg Marquadt method Levenberg-Marquadt method Levenshtein distance Le Veque lever lever action leverage Leveraged Leasing leveraged leasing leverage ratio leverage subsampling lever-amplification force standard machine lever arm lever arm effect lever connection Leverett Park lever for adjusting lever gyroscope

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