两万向节外侧滑动传动轴
two joint ouboard slip drive shaft
切割机传动轴轴承
cutter drive shaft bearing
输送机链传动链轮
conveyor chain drive sprocket
双动双工泥浆泵
double-acting duplex slush pump
双链双卟啉
Double-bridged porphyrin dimer
双排链传动
Double row chain transmission
双速车轴传动齿轮组
two-speed axle transfer gear group
双轴双排汽汽轮机
CCDF (cross-compound double flow
自动双轴铣床
automatic double-head milling machine