The measurement result is optimized by using the rotating grating for splitting laser light and producing frequency shift to determine the fluid direction.
采用旋转光栅分束产生频移来辨别流向，使测量最佳化。
The measurement result is optimized by using the rotating grating for splitting laser light and producing frequency shift to determine the fluid direction.
采用旋转光栅分束产生频移来辨别流向，使测量最佳化。
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