介绍了核电站蒸汽发生器管子-管板焊缝的氦质谱检漏及总漏率测试方法的研究及为提高检测灵敏度所采取的措施。
Using the helium mass-spectrometer leak detector to detect the leak of seams between the tube and face-flange and measure the total leakage rate are introduced in this paper.
本文报道了对氦-氖激光管击穿过程的理论分析。
This paper presents our theoretical analysis on the breakdown process of He-Ne laser tubes.
导出了加速寿命公式，利用该公式，可以快速地判定氦-氖激光管的寿命特征。
An equation for lifetime shortening is derived, which is used to determine readily the lifetime characteristics of He-Ne lasers.
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