The astronomers found an "X-ray mass" only a tenth of the mass found using the gravitational lens method.
天文学家发现“X射线估算的质量”仅有“引力透镜”方法估算的质量的十分之一。
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In addition, the team tested their analysis method by comparing the X-ray brightness of certain clusters with the strength of temperature changes seen in the WMAP data.
此外，通过对WMAP探测器数据中看到温度变化力度的X光亮度进行比较，该小组测试了他们的分析方法。
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Then the relationships between the numerous cracks and residual stress should be analyzed by testing the vessel systematically with X-Raymethod.