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钢质活节式灯桩通用技术条件
General specification for steel resilient beacon
价格:¥0.00
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灯塔主体及附属设施设置要求
Established requirement of the lighthouse and its facilities
价格:¥0.00
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钢管灯桩通用技术条件
General technical specification for steel tube light beacon
价格:¥0.00
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航标用钢质电池箱系列参数及结构尺寸
价格:¥0.00
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浮标锚链
Anchor chains foe buoys mooring systems
价格:¥0.00
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钢管灯桩
Tube steel trestle beacon
价格:¥0.00
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内河通航水域桥梁警示标志
Navigable inland waters signs of bridges
价格:¥0.00
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