中国古代航运史上曾有过不少辉煌的成就,许多方面遥遥领先于世界。船闸的发明与应用,对改善航运起了重要作用,世界航运史上也具有划时代的意义。 船闸,是在水位集中跌落的情况下,如建造闸、坝处,用以保证通航的水利工程建筑物。它主要由闸室及上下游闸首组成。闸室两端设置闸门,以与上下游隔开, There have been many brilliant achievements in the history of ancient Chinese shipping, many of which are far ahead of the world. The invention and application of locks have played an important role in improving shipping. The history of shipping in the world also has epoch-making significance. Locks, in the case of concentrated water level falls, such as the construction of gates, dam, to ensure navigation of water conservancy projects. It is mainly composed of the gate chamber and the upper and lower brake head. Lock chamber at both ends of the gate, with the upstream and downstream separated,