navigation season的意思|示意

The Three Gorges Project has brought significant benefits of flood control, power generation, navigation, and even in the dry season to achieve replenishment efficiency.

三峡工程带来了巨大的防洪、发电、航运效益，甚至可以在枯水期实现补水效益。

Temperature control measures for side wall concrete construction in the sixth lock head of the permanent navigation locks at the Three Gorges Project during hot season are briefly given in the paper.

简述了三峡工程永久船闸六闸首边墙混凝土高温季节施工的温控措施。