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介绍一种时差法超声波流量检测系统。
Study of Vehicle Object Detection and Traffic Flow Measuring System;
youdao
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它将随着水波流向大海，明天就将与她相遇。
It'll flow towards the sea, it will meet with her tomorrow.
youdao
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它将随着水波流向大海，明天就将与她相遇。
It'll flow towards the sea, it will meet with her tomorrow.
youdao