If the focus has changed between input reads, the old pipe to the xev process is killed and a new one started.

如果焦点在输入读取之间发生切换，则终止xev进程的旧通道并启动新通道。

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When new pipe is connected to old rusty pipe, generally, the new pipe is anodic to the old pipe.

当新管子和生锈旧管子相连时，新管子相对于旧管子常为阳极。

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By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).

在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。

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By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).

在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。

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