A synchronous motor can be used to drive a fan through a variable-speed magnetic coupling . 一个同步电动机能够通过变速磁性联轴带动风扇。
2.
Flanges for tank trucks ; threaded flanges for couplings for tank trucks 油罐车用安装法兰.油罐车用联轴接的带螺纹安装法兰
3.
Agricultural tractors and machinery - trailer coupling - bolt coupling for coupling - ring 40 农业用拖拉机和机械.拖车联轴节. 40联接环用螺栓联轴
4.
Hydraulic couplings on lorries and semi - trailer towing vehicles - part 1 : location of hydraulic couplings 载重汽车和鞍式牵引机构液压联轴器.第1部分:液压联轴
5.
Mechanical connections between towing vehicles and trailers ; automatic bolt coupling 50 ; dimensions and calculating data 牵引车和挂车的机械连接.第1部分: 50 mm自动螺栓联轴
