- 空转轮: free pulley; free-rolling wh ...
- 臂: arm
- 空转轮: free pulley; free-rolling wheel; idle gear; idle pulley; idle wheel; idler; idler gear; idling gear; intermediate wheel
- 从动空转轮: trailing idler
- 惰轮,空转轮,导轮: idler pulley
关注微信公众号：chachacidian，回复:空转轮臂，即可在微信中查询翻译
