Three different models cover a wide range of load and torque requirements.
三种不同的模式涵盖广泛范围的负载和扭矩要求。
Wide speed range to meet the constant torque and constant power requests.
调速范围广，满足恒转矩区和恒功率区要求。
The top-head has large torque, wide range of speed, big pull force.
动力方扭矩大、转速范围广，起拔力大。
The top-head has large torque, wide range of speed, big pull force.
动力方扭矩大、转速范围广，起拔力大。
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