"carpenter's level"的定义和意义

What is a "carpenter's level"?

A carpenter's level is a tool used by carpenters to check if a surface is perfectly horizontal or vertical. It typically consists of a straight bar with one or more bubble vials that indicate alignment. The vials are filled with liquid and have an air bubble that moves to the center when the tool is perfectly horizontal or vertical. Carpenter's levels come in various sizes, and some also feature magnets for use on metal surfaces. They are essential for ensuring precise measurements and alignment in tasks like framing, flooring, and cabinet installation.