适用于框架式码头，安装维修方便。
It applies for frame style dock, and easily installation and repair.
由于底部尺寸较小，特别适用于框架式码头和船舷安装使用。
Applicable for frame dock and ships due to the smaller bottom width.
由于底部宽度尺寸小，一般适用于框架式码头和船舷安装使用。
It is usually used for docks of framework type and ships due to the small size of its bottom width.
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