The advantage of this method is that preliminary determination of the position of the major polarization axis is not needed and calculations of beat lengths become very simple.
本方法的优点是不须预先确定光纤的偏振主轴的位置而且拍长度的计算也很容易。
This paper introduces the determination of amount of retarder layout of stop retarder , position and method of retarder layout and effect in application after stop retarders are installed.
宝丰车站调车场尾部应用停车顶代替人工上鞋和拧手闸使车辆停车防溜，文章详细介绍了停车顶布顶数的确定、布顶位置和布顶方式及安装停车顶以后的使用效果。
There are three methods for the determination of the acceleration based on differential GPS carrier-phase technology: position differentiating, velocity differentiating and direct carrier method.
利用GPS差分技术确定载体运动加速度，其方法有三种：位置微分法、速度微分法和加速度直接解算法。
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