actuate
verb [ T ] engineering formal or specialized uk/ˈæk.tʃu.eɪt/ /ˈæk.tju.eɪt/ us/ˈæk.tʃu.eɪt/
开动，启动;激励，驱使
to make a machine work or be the reason a person acts in a certain way
A detonator is actuated by heat, percussion, friction, or electricity. 高温、撞击、摩擦或电力均可引爆雷管。
He was actuated almost entirely by altruism. 他几乎完全是出于无私。