Because of this cross connection, the DTR output line can be used for simple flow control.
因为这种交叉连接，DTR输出线可以被用来简单的流量控制。
The DTR standard defines requirements for new end-stations and concentrators, and it specifies a protocol for full- duplex operation.
此DTR标准定义了新的端站与集中器的要求并制定了全双工工作的协议。
Its a pity that SAP does not sell technology - otherwise DTR could have given nightmares to all major SCM vendors.
非常遗憾，SAP并不卖技术，否则的话D TR的出现将是所有SCM供应商的噩梦。
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