将样品放置在一个空气干燥的圆形样品储存器内，得到X -射线衍射图。
The X-ray diffraction pattern are obtained by placing the sample in a circular sample holder in a dry atmosphere.
本样品储存器在X射线中放置25 秒，旋转的速度为每分钟1圈，以避免择优取向的影响。
This sample holder is placed at 25" to the X-ray beam and rotated at a rate of 1 rpm to avoid preferential orientation effects."
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