“mechanically operated”寫句子，用mechanically operated造句

a mechanically operated piano that uses a roll of perforated paper to activate the keys.

mechanically operated

A usually saucer-shaped bell that is struck with a mechanically operated hammer.

Self-sealing quick release coupling with or without mechanically operated valves.

electromechanically operated fingers

control gear and signal, level-crossing, mechanically or electromechanically operated

我們都沒想到真正的黑道導演可能壓根就不聽音樂。