actuator

名词 n.
/ˈæk.tjuː.eɪ.tə(ɹ)/|/ˈæk.t͡ʃu.eɪ.tə(ɹ)/    /ˈæk.t͡ʃu.eɪ.tɚ/|[ˈæk.t͡ʃu.eɪ.ɾɚ]|/ˈæk.t͡ʃʉ.æɪ.tə(ɹ)/|[ˈæk.t͡ʃʉ.æɪ.ɾə(ɹ)]

英文释义

名词 n.
  1. Something that actuates something else.
    — The mind is the actuator of the body.
  2. A usually electric device that causes a mechanical device (i.e., a mechanism) to be switched on or off. For example; an electric motor that opens and closes a valve.
  3. The mechanism that moves the head assembly on a disk drive.
  4. A relay that controls the flow of electricity.

词形变化

actuators plural

词源

Etymology tree
Proto-Indo-European *h₂eǵ-
Proto-Indo-European *-eti
Proto-Indo-European *h₂éǵeti
Proto-Italic *agō
Latin agō
Proto-Indo-European *-tus
Proto-Italic *-tus
Latin -tus
Latin āctus
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-yéti
Proto-Indo-European *-eh₂yéti
Proto-Italic *-āō
Latin -ō
Latin āctuō
Medieval Latin āctuātusder.
English actuate
Proto-Indo-European *-tōr
Proto-Italic *-tōr
Latin -tor
Latin -ātor
Old French -eorbor.
Middle English -our

Latin -torlbor.
English -or
English actuator
From actuate + -or. First attested in 1652.
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