自行车自动充气机
auto inflater for bicycle
运动学动力学仿真
Kinematics and Dynamics Simulation
半自动动力换档变速箱
semiautomatic power shift transmission
电动自行车
Electric bicycle
electrical bicycle
electric bike
E-bicycle
electric-bike
E-bike
electric bikes
electric bicycles
Algebraic CELP
electric vehicles
VRLA
algebraic calculation method
electronic bicycles
batteries for electric bikes
electricl bicycle
Electric-vehicle
electro-bicycle
electrically operated bicycle
bicycle
dynamoelectric bicycle
electric-bicycle
Eletrically operated bicycle
dynamoelectric Bike
the electric bicycle
电动自行车电池
electric bike batteries
electric bicycle batteries
电动自行车电池组
electric bicycle battery set
电动自行车及其电池
Electrica bicycle and its battery
电动自行车用VRLA电池
VRLA batteries for electric bicycles