locks
Locks
locks
I think you are referring to locks;used to lower and raise water levels for ship transportation.
the flag is raised and lowered when you first walk in the flag is raised and lowered when you first walk in
an adjustable chair can be raised and lowered.
First it is raised and then it is lowered. short and simple.
Raised.
The ball-and-socket joint of the shoulder allows the upper arm to be raised and lowered.
A section of a waterway in which ships are raised or lowered is called a lock. Locks are integral components of a canal system, allowing vessels to navigate changes in elevation by managing water levels. They facilitate safe and efficient passage through areas with varying topography.
When they have been lowered.
A Sharp
Taxes can decrease the supply when they are raised and increase the supply when they are lowered. Subsidies, on the other hand, can raise the supply when raised and lower the supply when they are lowered.