This requirement has brought about the development of breaker operating mechanisms that are not only high-speed opening, but are also high-speed reclosing.

这种要求已促使研制出具有不仅能快速分闸而且也能快速重合闸的断路器操动机构。

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Film cooling of the surface of a gas turbine blade was studied in a large-scale low-speed opening wind tunnel according to actual requirement of the design of aero-engine.

根据航空发动机设计的实际需要，在大尺寸低速叶栅传热风洞中对涡轮叶片表面的气膜冷却进行了综合性实验研究。

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He soon hit top speed to outgun all his rivals in the opening qualifying session.

他在首场资格赛中很快就跑出了最快速度，击败了所有对手。

《柯林斯英汉双解大词典》

Concerns about the pace at which the horses approach the first fence have also prompted race organizers to fit each of the 40 horses with a microchip to track their speed on the opening run-in.

WSJ: Why They Fear Aintree's First

Jeffords' move could doom a major piece of House legislation, the Internet Freedom and Broadband Deployment Act of 2001, which would allow the Bells to offer high-speed Internet access without first opening their markets to local competition.

CNN: Jeffords switch seen as no shock to tech policy

Last month saw the opening of a new high-speed rail line and the city's first subway.

BBC: Can Wuhan's state-owned giants adapt?