A signal thread handles alarms and forces timeouts on connections that have been idle too long.

一个信号线程处理警报并在闲置时间过长的连接上强制执行超时。

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First of all, Ethernet stations check to see if the ether is idle (carrier sense) and wait if they sense a signal.

首先是“载波感测”。以太网站先检查“以太”是否空载，如果检测到信号了就排队等候自己的发送机会。

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In this mode, the TX signal will be HIGH during reset or idle.

在这种模式下，TX信号为高电平期间将重置或空闲。

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One danger signal will be if the Chinese banks start using their idle domestic deposits to fund a lending bender abroad.

ECONOMIST: Japanese banks

Started in late 1998, the space-alien hunt has recruited the owners of 2.5 million PCs, tapping their machines' idle processing time to search small chunks of radio telescope data for patterns that might signal intelligent life elsewhere in the cosmos.

FORBES: Sharing Power