The vibration response of the pipelines with changing parameters under random traffic loads has been studied in this paper.

研究了参变管道在随机交通荷载作用下的振动响应问题。

youdao

You just had to throw up vast numbers of them to get any traffic at all and it was pretty much random what you did get.

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"Nothing will show the problem clearer than a collection of random photos from ordinary residents trying to get on with everyday lives, but cannot due to the flow of traffic", he said.

BBC: Traffic on prom