The system achieves multi-channel temperature signal acquisition and control. Temperature limit is set by keyboard. The buzzer and relay are controlled by MCU.

本系统可以实现多路温度信号采集与显示，可以使用按键来设置温度限定值，通过进行温度数据的运算处理，发出控制信号达到控制蜂鸣器和继电器的目的。

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Check actual operation value of the relay according to set value.

按设计的整定值，检验继电器实际动作值。

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A set of relay protocols are designed to make the system have relay function, which spread the work range of concentrator and reduce the costs of installation and maintenance.

同时设计了一套中继通讯协议，使终端具有中继功能，扩充了集中器的管理能力，降低了安装和维护费用。

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Zhou Yang broke the women's beating the previous mark held by compatriot Wang Meng.Zhou, Wang and their two teammates bettered the mark in the 3000-meter relay that China had set at the 2002 Salt Lake City Olympics.

VOA: standard.2010.03.01

This year more than 500 people from 41 countries are taking part in the 40, 000-mile relay race, which started in August 2011 and is set to finish later this month.

CNN: July 12, 2012 -- Updated 1330 GMT (2130 HKT)

Great Britain's men made it through the heats of the 4x100m relay as Simeon Williamson, Tyrone Edgar, Marlon Devonish and Harry Aikines-Aryeetey set the second best time of 38.11.

BBC: Dobriskey through to 1500m final

The units, dubbed "Churchill's Secret Army", were set up to relay vital information about enemy movements and help mount counter-attacks as Britain braced itself for occupation.

BBC: Secret wartime bunker near Cardiff opened to public