It was too hot. Now most X-ray tubes are made by machines.
因为工厂里太热了，现在大部分的x光玻璃管都是机器生产的。
2
In this paper, a method for quantitative determination of spectral distributions of primary radiation from X-ray tubes for diffraction and X-ray fluorescent spectral analysis is presented.
本文提出了衍射或荧光分析用的X射线管原级X射线谱强度分布的定量测定方法。
3
Cracked tungsten tubes prepared by chemical vapor deposition were investigated by ring machine cutting method and X? Ray stress analysis system.