river navigation

• 内河航运

river navigation的用法和样例：

例句

1. America and Germany do well in inland river navigation.
   美国和德国是内河航运强国。
2. Inland river navigation is an important component of comprehensive transportation system.It has no commutable advantages and actions in transporting bulk cargo.
   内河航运是我国综合运输体系中的重要组成部分，在大宗货物运输中具有不可替代的优势和作用。