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This is our electronic punch card system.
这是我们的电子刷卡系统。
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Using TD200 and PLC to control feeding system of punch makes up a digital control mechanical and electronic device, which is efficient and economic.
通过TD 200组态以及PLC控制程序对冲床进料系统进行控制，构成一个高效的经济型数控机电一体化装置。
At least five different voting technologies will be used November 2: electronic machines, lever machines, paper ballots, optical scanners, and punch cards.
CNN: Voting methods under close watch
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