noun
simple machine
Technical term in physics and engineering for basic mechanical devices such as levers, pulleys, and inclined planes.
てこは単一機械の一種です。
A lever is a type of simple machine.
Compound of 単一 (tan'itsu, 'single, simple') and 機械 (kikai, 'machine'). The term is a direct translation of the English 'simple machine'.