A new instrument which can measure the phase difference by 8051 microcontroller and LED digital display current driven by MAX7219 is introduced.

介绍了一种主要由8051单片机、MAX7219驱动的LED数码显示电路构成的相位差测量仪。

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The current phase of construction will create new private sector jobs -- and that won't just make a difference to all the people who get these jobs, it will make a difference to all those communities where they spend their paychecks.

WHITEHOUSE: President Obama on Highways and Recovery