The orientation and crystallinity of the PET fibers were measured by sonic and X-ray diffraction. The feature of modulus-strain curves were discussed from the fiber structure and applications.
通过声速法和X射线衍射实验测试纤维的取向和结晶，结合纤维结构及纤维应用讨论了两种PET纤维的模量-应变曲线特点。
The light purse used in said method may be either an X-ray pulse or an electron beam pulse or ultra-sonic pulse.
本发明所用光脉冲可以是X射线脉冲，也可以是电子束脉冲或超声波脉冲。
The spinnability and drawability of PMMA/PET blends were studied. The orientation and crystallization structure were measured by sonic velocity method and X-ray diffraction respectively.
研究了PMMA/PET共混纤维的可纺性和拉伸性，并测定了拉伸丝的力学性能、取向和结晶结构。
The spinnability and drawability of PMMA/PET blends were studied. The orientation and crystallization structure were measured by sonic velocity method and X-ray diffraction respectively.
研究了PMMA/PET共混纤维的可纺性和拉伸性，并测定了拉伸丝的力学性能、取向和结晶结构。
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