两个液压钢制闸门抬高，以将贡多拉与运河盆地里的水隔离开。
Two hydraulic steel gates are raised, so as to seal the gondola off from the water in the canal basin.
这个项目被称作摩西计划，它需要再从亚得里亚海流入威尼斯水域的三条支流上建造七十八座钢制闸门。
Known as Project Moses, it entails the construction of 78 giant steel gates across the three inlets through which water from the Adriatic flows into Venice's lagoon.
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