English Dictionary

tide lock

noun

A lock situated between an enclosed basin or a canal and the tide water of a harbor or river, when they are on different levels, so that craft can pass either way at all times of the tide

The tide lock at the harbor controls the water level.

意味（1）

A lock situated between an enclosed basin or a canal and the tide water of a harbor or river, when they are on different levels, so that craft can pass either way at all times of the tide