而ERPEL在其上部装上了一系列的粗管,可以如第一种装置一样往这些粗管里灌水。
The weight of these tubes holds the protective layer in place, while the gaps between thetubes permit the overspill to escape.
这些装满水的管子的重量足以固定住这些保护层,漫出堤坝的河水可以在粗管间溢过。
Some flooding from that overspill resultsbut not as much as if the spill were allowed toerode and destroy the levee itself.
这样虽然有一些河水漫出堤坝,但造成的损失会远远小于由于土坝在水流侵蚀下而垮塌产生的后果。
Yet simply halting floodwaters and preventing short-term damage is not enough.
然而只是堵住了洪水防止了眼前的灾难并不完美。
Neither PLUG nor REPEL can be used permanently.
PLUG与REPEL都是应急设施。
It is the third of Mr Laska s acronyms, REHAB,
拉斯卡先生还有第三套装置,其首字母缩略语是REHAB,又正好有重建之意。
that allows engineers to make permanent repairs.
工程师们可以用它对堤坝进行永久性的修复。
The Rapidly Emplaced Hydraulic Arch Barrier,
该装置的全称叫做便置式拱形折流坝。
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