A new testing method is introduced in the paper, the speed and displacement single grating measuring system has been realized by using Doppler effect of grating moving.
本文介绍一种新的测试方法，利用光栅运动的多普勒效应，实现速度或位移测量的单光栅测量系统。
This paper discusses a new method for measuring displacement using grating Doppler effect.
本文研究了一种利用光栅衍射的多普勒效应进行位移测量的新方法。
Conclusion the therapeutic effect of false arteria femoralis by using compression method and injecting thrombin into aneurysm cavity by color doppler ultrasonic guidance is therapeutical and safe.
结论在彩色多普勒超声引导下运用压迫法结合瘤腔内注射凝血酶治疗假性股动脉瘤的方法是安全有效的。
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