front spring arm 前弹簧平衡肘

spring carrier arm 弹簧托架 ; 弹簧挂钩

valve rocker arm shaft spring 气门摇臂轴弹簧 ; 阀摇臂轴弹簧

breaker arm spring [电] 断电臂弹簧

rocker-arm plunger spring 摇臂柱塞簧

valve rocker arm spring 阀摇臂弹簧

spring compressor arm 弹簧压缩器臂

equalizer spring stem arm [铁路] 均衡弹簧杆臂

rocker-arm spring 摇臂簧