bell-crank lever双臂曲柄杆;[仪] 直角形杠杆;压缩杠杆
bell-crank drive双臂曲柄传动机构
hand brake bell crank手制动曲拐
bell crank bracket角杆托架
bell crank governor直角杠杆调节器
hoist bell crank起重机直角杠杆
bell crank engine钟形曲柄发动机
BElL CRANK ASSY STEERING转向三角臂总成;转向三角学臂总成
brake bell crank制动器直角杠杆;制动器直角形杠杆
N（名词） a lever with two arms having a common fulcrum at their junction 钟锤杠杆 [engineering]