批传送程序BTP ？
USB protocol has four transfer types: Control transfer, Bulk transfer, Interrupt transfer, and Isochronous transfer.
该协议具有四种传输方式，即控制传输、批量传输、终端传输和等时传输。
The USB transfer type is bulk mode which can provides high speed data transfer.
USB通信采用块传输方式，可以提供高传输速度。
The USB transfer type is bulk mode which can provides high speed data transfer.
USB通信采用块传输方式，可以提供高传输速度。
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