bottlenecks
n.
瓶颈( bottleneck的名词复数 );
瓶颈路段（常引起交通堵塞）;
（尤指工商业发展的）瓶颈;
阻碍;
例句:
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With this data, we can easily pinpoint bottlenecks.
来自BBC
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Roadworks are causing bottlenecks in the city centre.
道路施工导致市中心交通阻塞.
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At five o'clock in the afternoon the city streets are a series of bottlenecks.
下午五点市中心的街道就成了拥挤不堪的窄路.
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Repairs PC configurations by eliminating system bottlenecks and preventing crashes.
维修电脑的配置,消除系统瓶颈,并防止崩溃.
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It has too many bottlenecks in the tower components.
来自SA
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One of the main bottlenecks has been power to weight ratio.
来自SA