By taking S7-200 PLC made by German Siemens Corp. as main unit, the automatic control function of adsorption type dryer is realized.是什么意思_By taking S7-200 PLC made by German Siemens Corp. as main unit, the automatic control function of adsorption type dryer is realized.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句