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;
它将随着水波流向大海，明天就将与她相遇。
在乌克兰，一波流感已经感染了140万人。
In the Ukraine, a strain of the flu has infected 1.4 million people.
在乌克兰，一波流感已经感染了140万人。
In the Ukraine, a strain of the flu has infected 1.4 million people.
应用推荐