In the aspect of vehicle plate location, author adopt the algorithm of the frequency of gray scale alternate to seek approximately location.
在车牌定位方面，本文采用了灰度跳变频率算法进行粗定位。
The alternate test of static load and dynamic load on RC beam serves the study of the frequency change disciplinarian from integrity to destroy of RC beam.
通过对钢筋混凝土梁进行不同荷载等级下静载和动载的交替实验，得到混凝土梁从完整到破坏的频率变化规律。
Conclusion the bidirectional alternate traction manipulation plus low frequency electric stimulation are effective in the treatment of the vertebral-artery-type cervical spondylosis.
结论双向交替牵引手法配合低频电刺激是更为有效的治疗椎动脉型颈椎病的方法。
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