标准查询 标准查询小艇.稳定性和浮力评估和分类.第1部分:船体长度大于或等于6米的无帆之船
Small craft - Stability and buoyancy assessment and categorization Part 1: Non-sailing boats of hull length greater than or equal to 6 m
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标准查询Small craft - Stability and buoyancy assessment and categorization Part 1: Non-sailing boats of hull length greater than or equal to 6 m
