unreachable

adj.

不能达到的；及不到的；取不到的；不能得到的

1. This page will explain what a destination unreachable message is and why it occurs.
   本页将解释目的地不能到达的讯息是什麽和为什麽它会发生。
2. Figure shows the meaning for each possible code value in a destination unreachable message.
   图显示在目的地不能到达的讯息内的每个可能的代码值的意义。

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