handwheel

名词 n.
中文释义

英文释义

名词 n.
  1. Any wheel worked by hand, whether used to allow leverage, as of a valve or a handbrake, or to allow fine adjustment, as of a set screw.
    — Front damper doors on each hopper and the back damper door of the centre hopper are opened and closed by screw gear worked from a handwheel on the fireman's side of the cab.

词形变化

handwheels plural hand wheel alternative

词源

Etymology tree
Proto-Germanic *handuz
Proto-West Germanic *handu
Old English hand
Middle English hond
English hand
Proto-Indo-European *kʷel-
Proto-Indo-European *kʷekʷléh₂
Proto-Germanic *hweulō
Old English hwēol
Middle English whel
English wheel
English handwheel
From hand + wheel.
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