double throw crank shaft

机械英汉词典... ... double thread ||双头螺纹，双线螺纹 double throw crank shaft ||双弯曲柄轴 double trailer ||双挂车 ...

机械工程英语翻... ... 双重汽化器 double throw carburetor 双拐曲柄轴 double throw crank shaft 双投开关 double throw switch ...