Nanchang Gannan Machinery Manufacturing Co., Ltd., is a manufacturer of multi-speed milling head of the professional manufacturers.
南昌赣南机械制造有限公司，是一家生产多速铣削动力头的专业厂家。
2
YD series varible pole multi-speed three-phase asynchronous motors are one of the main series products deriving from three-phase series.
YD系列变极多速三相异步电动机是三相异步电动机的主要派生系列之一。
3
The difficulty problem of image deform in multi-speed security verification system is discussed in the paper, and a real-time correction algorithm is provided.