在伏尔加通航水道上成功的应用了中心信号设备,航道上航行信号的尺度和颜色采用相应的国定全苏标准形式以改善航线上航行状况。然而为了安全导航,特别是在伏尔加河上的一些库区,其特点是水域大、距岸远,同时有大量各种信号灯光,这就是船舶驾驶难以定向的因素。 经观察,以河口——为例。 The central signal equipment was successfully applied on the Volga navigation channel. The scale and color of the navigation signal on the waterway adopted the corresponding national standard of the All-Su-Soong to improve the navigation conditions on the route. However, for safe navigation, especially in the reservoir area on the Volga River, which is characterized by large waters, far away from the shore and a large number of signal lights, this is a factor that makes ship navigation difficult to orientate. After observation, the estuary - for example.