narrow channel navigation的意思|示意

Therefore, how to improve narrow channel manoeuver safety is always a hotly discussed question in the navigation circles.

如何有效提高狭水道操纵安全水平一直是海运界思考的问题。

The existence of the bridge make the channel narrow, affect the traffic environment at different extent, threat the navigation safety of ships, which lead to water traffic accidents.

桥梁的存在使得航道束窄，不同程度地影响了桥梁水域的通航环境，船舶航行的安全受到威胁，水上交通事故时有发生。