So how is this situation avoided when one USES DTR?

那D TR是如何避免这种情况的？

The DTR is the switching fabric the connects the C-Ports within DTR concentrator.

dtr是一种交换结构，在dtr集中器内把c口连接起来。

But with DTR, you can also replicate sources between repositories in different locations.

DTR可不一样。它可以对处于不同物理位置的库之间进行复制。

With DTR you can simply integrate your bug fixes of older releases into the new releases.

使用DTR，就能够很简单地在进行系统调试时，将老版本的信息整合到新版本中。

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。