hydrographic(al) net(river system; water system)

• 水系

hydrographic(al) net(river system; water system)的用法和样例：

例句

1. The Congo River and its tributaries have formed a complete water system.
   有刚果河及其支流形成的单一完整的水系。
2. Gong Naisi rich grassland rainfall, water systems developed on a wide range.
   巩乃斯草原降水丰富，水系发达，物种类繁多。