vacuum flight

This paper presents some suggestions on the development of the manned space environment simulation testing for the success of manned space flight in China, based on the analysis of the experience of manned thermal vacuum testing and micro-gravity environmental simulation testing in America and in Russia.

文章通过分析比较美国和俄罗斯载人航天发展的经验与教训，提出如何开展我国载人航天空间环境地面模拟试验的建议，从而保证我国载人航天飞行的成功。

Photoionization of oxygen is performed by using a time-of-flight mass spectrometer and a threshold photoelectron analyzer with synchrotron radiation vacuum ultraviolet photons.

利用高强度的同步辐射光及光电离质谱和阈值光电子谱，研究了O2分子的真空紫外光电离，获得了许多Rydberg态的信息。

Measurement of positronium fraction in vacuum by time-of-flight spectroscopy

飞行时间法测量真空电子偶素产额研究低能离子溅射诱导的缺陷损伤