The negative pressure trough and deep trough high speed belt conveyor arranged in the left bank solved this problem.

通过在左岸布置负压溜槽和深槽式高速皮带联合运输系统，解决了这个问题。

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The trough of low pressure extends over 1,000 miles.

低气压槽延伸一千多英里。

《柯林斯英汉双解大词典》

And, the southward moved axis of monsoon trough today passes through Bikaner, Deesa, Jabalpur, Raipur, Center of low pressure area.

而且，季风槽向南移动轴的今天经过比卡内尔，迪萨，贾巴尔普尔，赖布尔，低压区中心。

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