The research and development of X-ray coherent scatter imaging, X-ray diffraction enhanced imaging and X-ray coherent scatter CT imaging are mainly summarized.
重点介绍了X射线相干散射成像技术、X射线衍射增强成像技术和X射线相干散射CT成像技术的研究和进展。
Ray tracing accelerate technique, the parameters of complex ray has been discussed in this article, and some empirical formulas for choosing the complex ray parameters have been given out.
本文讨论了射线追踪加速技术,复射线参数的选取,并分析了复射线计算中产生误差的主要原因。
The change of the X ray exposure with increasing the X ray energy and the measurement of multichromatic (white) X ray exposures were also discussed, respectively.
讨论了软X射线照射量随能量的分布特性及混合能量X射线(白光)的照射量测量方法。
Pierce agreed. This week on our series, Ray Freeman and Steve Ember continue the story of the presidency of Franklin Pierce.
VOA: special.2009.05.07
I basically gave them free ray at the beginning, so they work in small groups, and travel from site to site.
在最初,我给了他们充分的自由,孩子们组成学习小组,在各地游览。
And what's interesting about this sun is it has a ray of light coming out of the top.
这幅画的有趣之处在于红日的光线从画面的顶端射了出来。
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