在封闭式港坞以及水位稳定的港口里，码头的高度不能低于离水2.5米。
In closed docks or in ports with a stable water level, the quay surface should never be less than 2.5 meters above water level.
在封闭式港坞以及水位稳定的港口里，码头的高度不能低于离水2.5米。
In closed docks or in ports with a stable water level, the quay surface should never be less than 2.5 meters above water level.
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