"dumpy level"的定义和意义

What is a "dumpy level"?

A dumpy level is a type of optical instrument used in surveying and construction to measure and establish horizontal levels over long distances. It consists of a telescope mounted on a tripod that can be adjusted to a horizontal position. The instrument has a spirit level built into it, allowing the user to align it properly. A dumpy level is typically used for tasks like leveling land, establishing floor levels, or setting out foundations. It is known for its simplicity, durability, and accuracy in measuring horizontal lines in surveying and construction projects.