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Sewage disposal PLC process automatic control system
杨大勇, 赵坤荣, 2008 .
PLC automatic control system of sewage treatment process
杨大勇, 赵坤荣, 2008 .
Updating and inquiring method and management system of laboratory object information and based on information code
杨大勇, 杨剑, 林奎, 2013 .