A closer inspection of the tool mark shows a series of parallel teeth marks, probably from the use of a plumber's wrench or tongue-and-groove pliers.
放大后的检验，可见一系列平行的齿纹，有可能来自管钳，会其他靠钳齿来抓牢工件并旋转的钳子。
Aiming at the abnormity of the phase and groove number, hardware redundancy and difference method is used to forecast time series and the problems are resolved.
针对定位传感器应用中相角和齿槽数信号异常的问题，利用硬件冗余和差分法进行时间序列预测，解决了该类问题。
The dentate groove is devised which is composed of a series of the etched parallelogram pits in KOH solution.
设计了利用KOH溶液定向腐蚀制作出的平行四边形蚀坑串，所形成的锯齿状沟槽结构来固定光纤。
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