Still missing, it is claimed, were the drainage grooves that siphon off rainwater.

但是据称，重开之后这个跑道仍然缺少在雨天分流雨水的排水槽。

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The siphon drainage technology of the Harbor Bank slope was simulated in the laboratory with a Fengjie freight dock, and the region of Three Gorges reservoir serving as our paradigm.

以三峡库区奉节某货运码头为原型，于实验室模拟了港口岸坡虹吸排水技术。

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Siphon drainage system is applied to the roofing rainwater drainage of Guangzhou International Conference and Exhibition Center.

广州国际会议展览中心屋面雨水排水采用虹吸排水系统。

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But mindful of a barrage of criticism following last year's festival, festival organiser Michael Eavis - who has announced the festival will continue for a further five years - has spent the last six months working on new drainage channels to siphon off excess water.

BBC: Warm start for Glastonbury