沿海航区 meaning in English

coastal navigation areas

This tug shall be designed and constructed in accordance with the requirements of ccs rules on the coastal tugs . this tug shall assist the dredgers in dredging operation , and has the function of towing , fire - fighting and personnel transport etc . main engine : nta855 - m350
按我国规范对沿海航区拖船的要求进行设计建造，主要用于协助csd650整体绞吸式挖泥船或350m3 h整体绞吸式挖泥船挖泥作业，具有拖带消防及运送工作人员等功能。