我国幅员辽阔,河流众多,建国30年来全国兴建了许多通航建筑物。据1978年底的不完全统计,全国共有通航建筑物847座,其中升船机65座,船闸782座。此外,还有碍航闸坝1,000多处,需要陆续修建相应的通航建筑物,其中大部分宜建设船闸。 My country has a vast territory and numerous rivers. Many navigable structures were built throughout the country in the 30 years after the founding of the People’s Republic. According to incomplete statistics at the end of 1978, there were 847 navigable buildings in the country, including 65 lift ships and 782 ship locks. In addition, there are still more than 1,000 embarked sluice gates. The corresponding navigable structures need to be gradually constructed. Most of them should be built with locks.