... 衍射测微器：diffraction micrometer 衍射测速仪：diffraction velocimeter 颜色转换滤光镜：colour conversion filter ...
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optical diffraction velocimeter [光] 光学衍射测速仪
diffraction E velocimeter 衍射测速仪
diffraction ĥ velocimeter 衍射测速仪
diffraction Å velocimeter 衍射测速仪
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PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.
采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试，并将其结果进行对比。
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