Ball Aerospace's Jake Lewis is reflected in one of the mirrors on a James Webb space Telescope Array, in the X-ray and cryogenic facility for testing.
波尔航空航天的Jake Lewis正在向我们展示一组镜子—詹姆斯·韦伯太空望远镜阵列，它正在低温和X射线中进行测试。
Worn surface morphology and element chemistry configuration of steel ball were analyzed by means of X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).
用扫描电子显微镜和X射线光电子能谱仪观察分析了磨损表面形貌和元素化学形态。
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