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canal lock: side view click to hear : canal lock: side view

canal lock: side view image
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See canal lock: side view in : french | spanish
upper gate lower gate upper level lock-chamber lower level flow

upper gate click to hear : upper gate

Watertight door or pair of doors made of wood or metal that open when the water levels between the lock-chamber and the upper level are the same.

lower gate click to hear : lower gate

Watertight door or pair of doors made of wood or metal that open when the water levels between the lock-chamber and the lower level are the same.

upper level click to hear : upper level

Part of the lock at the upstream end of the lock-chamber.

lock-chamber click to hear : lock-chamber

Central part of the lock where the water level is raised and lowered depending on the heading of the ship.

lower level click to hear : lower level

Part of the lock at the downstream end of the lock-chamber.

flow click to hear : flow

Natural current moving down the grade from upstream to downstream.