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关注:1
2013-05-23 12:21
求翻译:Where external doors in bulkheads of superstructures and deckhouses are required to be watertight, they need not be self-closing;是什么意思?![]() ![]() Where external doors in bulkheads of superstructures and deckhouses are required to be watertight, they need not be self-closing;
问题补充: |
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