How to turn the signals into acceptable trigger pulse is the task of the trigger circuit, which includes trigger source choice circuit, coupling types choice circuit, trigger amplifier and comparator.

触发信号调理电路主要包括触发源选择，耦合类型选择，触发放大器和触发比较器等组成部分。

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The circuit including the main welding circuit, shows the interface, watch dog circuit, sampling circuit, trigger, synchronous circuit and electromagnetism gas valve etc.

包括焊接主回路、采样电路、触发电路、同步电路、电磁气阀启动电路、显示界面以及看门狗等电路。

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This article introduces the characteristics of stabilized arc circuit, sync shift-phase circuit, trigger circuit and control circuit, also illuminates each unit circuit.

介绍了稳弧电路、同步移相电路、触发电路及外特性控制电路的设计特点，对各单元电路进行了具体的分析。

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The index is set to replace the Dow average on April 8 as the index whose action will be monitored for the sharp swings that trigger "circuit breakers" halting all U.S. stock trading.

WSJ: S&P 500 Milestone Has More Meaning Than Dow Record for Many

It can then interact with other strands, chopping them to trigger other gates or activate fluorescent tags that display the circuit's final output.

ECONOMIST: DNA computing