The control system is composed of AT89C52, a high-powered 8-bit microcontroller, data gathering circuit, real time circuit, data output circuit and system watch circuit.

本控制系统以高性能8位单片机at89c52为核心，结合数据采集电路、信号输出电路、实时时钟电路、系统监控电路组成。

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If you don't have much time, circuit training is a great way to hit all your muscle groups in a short period of time.

倘若你时间不多，循环健身是短时间内锻炼到身体每处肌肉的最好方法。

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It would be weeks before he could catch another flight home, but the delay gave him time to hike the Annapurna Circuit, a 14-day trek through the Himalayas.

VOA: standard.2009.12.13

"Singapore is a night time circuit, which none of us have experienced before, but we'll be OK, " the English driver added.

BBC: Hamilton eyes error-free run-in

The Australian was unable to replicate his earlier form in final practice where he set the fastest-ever time at the circuit of 1:29.527.

BBC: QUALIFYING POSITIONS

Does she really honestly think she can just scrape by without spending any time off the publicity circuit?

FORBES: The Sad Defense of Sarah Palin's Botched History