航行区域 meaning in Chinese

sail area
trading limits

Where was your last vessel ' s trading area ? which ports have you called
你上一条船的航行区域？都到过那个港口？
A strip of canvas laced to a fore - and - aft sail to increase sail area
辅助帆一片被绷在船头或船尾以增进航行区域的油布
The planned route is fixed according to sea area , ship condition and weather element . then we may correct the route , rudder and engine in the light of wind currency and obstacle as well as make control in accordance with actual state , economy and requirement to obtain the relevant avoidance data by using of ais or arpa and offer the corresponding navigational safe areas in connection with the various navigational areas and conditions
利用ais ( automaticidentificationsystem ，船舶自动识别系统)或arpa (自动雷达标绘仪)获得相关的避让数据，对相同海域航行的船舶态势及船舶长度进行避航领域的推算，将其结果与实际调查的情况进行拟合和数据处理，针对不同的航行区域与条件，给出相应的航行安全领域。