thalweg

英 ['tɑːlveɪk] 美 ['tɑːlˌveg]

• n. 海谷底线(海谷深泓线)

thalweg的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. the middle of the chief navigable channel of a waterway that forms the boundary line between states

2. a line following the lowest points of a valley