This control valve is a weir diaphragm valve and has created a clogging congestion point in the flow system that requires constant maintenance.

这个控制阀是一个堰式隔膜阀，在流体系统中形成一个堵塞点，需要经常进行维护。

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From that point the process begins anew, congestion Windows again expand, and the SACK overhead picks up again.

此时这个过程重新开始，拥塞窗口又一次增大，而SACK开销也是如此。

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The GE Aviation team conceptualizes a 20-passenger aircraft that could reduce congestion at major metropolitan hubs by using community airports for point-to-point travel.

GE航空团队提出搭载20名乘客的航空器，通过为点对点旅行使用社区机场，它能减少主要大城市枢纽的拥堵状况。

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Overall, national congestion peaks each weekday morning between 7:45 and 8:00 am, with average evening congestion reaching its most-maddening point between 5:30 and 5:45 pm.

MSN: The most traffic-jammed cities in America

He said the school had made referrals to police who were taking action and had written to parents to tell them there was a preferred collection point on a safer road with better access and less congestion.

BBC: Cars driving on pavement