当我们航行在河流上时,便可以在两岸或河中看到各种各样的标志,这就是我们通常所说的航标。航标的主要作用是准确地标示出航道的方向、界限以及航道内及其附近的水上或水下的障碍物与建筑物,为船舶指出安全、经济的航道。设置航标不但可使船舶安全行使,避免事故,减少海损,而且可以开辟夜航,缩短航行总时间,加快船舶周转,增大航道通过能力,对充分利用和发展水运事业具有极其重要的意 When we are sailing on a river, we can see all kinds of signs on both sides of the river or in the river. This is what we usually call the aids to navigation. The main function of aids to navigation is to accurately indicate the direction of the navigation channel, boundaries and waterways and underwater obstacles and structures in and near the navigation channel, so as to point out a safe and economical waterway for the ship. Setting a navigational aids will not only enable the ship to exercise safety, avoid accidents and reduce the maritime damage, but also open night navigation, shorten the total time of navigation, speed up ship turnover and increase the passage capacity of waterways, which is extremely important for the full utilization and development of the water transport industry