重力式码头预制沉箱采取近程拖带时,船舶一般()。 A.可用简易封舱 B.可用密封舱 C.不用封舱 D.不用密封舱

作者: tihaiku 人气: - 评论: 0
问题 重力式码头预制沉箱采取近程拖带时,船舶一般()。 A.可用简易封舱 B.可用密封舱 C.不用封舱 D.不用密封舱
选项
答案 A
解析

相关内容:重力,码头,沉箱,船舶,密封舱,不用

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