理论分析和实验结果表明这是一种简单、灵敏并且有效的亚稳态原子寿命测量方法。
The experimental results show that this is a very simple, sensitive and effective method to measure the lifetime of atomic metastable level.
亚稳态原子消激发，使蒸气宏观速度增加，温度增加，所以使速度分布函数峰值右移，半宽度增加。
As metastable atoms deexcite, the vapor velocity and temperature increase, the peak value of the velocity distribution function shifts rightward, and the half width increases.
研究设计了一种亚稳态氦原子束源系统。
A system of metastable helium atom beam source has been developed.
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