... sink（sinkhole,swallow hold）落水洞 siphon irrigation虹吸管灌溉 Sirocco锡罗科风（北非） ...
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irrigation inverted siphon 地下渠道
irrigation siphon 灌溉虹吸管
siphon n irrigation 虹吸管灌溉
siphon tube irrigation 虹吸管灌溉
irrigation n inverted siphon 地下渠道
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As a new type of drainage and irrigation of the dock, siphon has the advantages of simple structure, protection against sand and water and rapid set-off.
虹吸管是作为船坞灌水排水的一种新型式，具有结构简单、防冰防沙、断流迅速的优点。
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