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崇慶陽(yáng)光
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樓主  發(fā)表于: 2006-08-15 20:33
第一種:


第二種:

[ 此貼被崇慶陽(yáng)光在2006-08-15 20:49重新編輯 ]
不懈努力,一切皆有可能 ...
oldgesr
青山與共高人語(yǔ)，聯(lián)翩萬(wàn)馬來(lái)無(wú)數。
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1樓  發(fā)表于: 2022-05-19 09:00
這只是初入PLC控制學(xué)習的范例罷了。至于實(shí)際工業(yè)運用時(shí)采用那種方案，則大半處于成本花費考量。

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