船长: {{item.ship_length_m?item.ship_length_m+'m':"不详"}}
船宽: {{item.ship_width_m?item.ship_width_m+'m':"不详"}}
吃水: {{item.draft_m?item.draft_m+'米':"不详"}}
总吨: {{item.gross_tonnage?item.gross_tonnage+'t':"不详"}}
载重吨: {{item.deadweight_tonnage?item.deadweight_tonnage+'t':"不详"}}
船籍港: {{item.registry_port?item.registry_port:"不详"}}
