He waited for a policeman to stop the traffic and wave the people on.
他等着一位警察来让车辆停下，挥手让众人前行。
The change in speed passed like a wave, backwards through the traffic.
这种变速的行为就像一个波浪一样，在整个交通中一直向后推移。
This paper describes the state of millimeter wave technique application in Integrated traffic control system.
本文主要介绍毫米波技术用于综合交通管制系统的研究动向。
This paper describes the state of millimeter wave technique application in Integrated traffic control system.
本文主要介绍毫米波技术用于综合交通管制系统的研究动向。
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