葵花脫粒機的設計ABSTRACTSUNFLOWERINDUSTRYASTHEMAINECONOMICCROPSINCHINAHASBEENGREATLYDEVELOPEDSUNFLOWEROILHASBECOMEONEOFTHEFOURMAJOILCROPSTHEDEVELOPMENTOFEDIBLESUNFLOWERFASTERMETHAN70OFTHENATIONALSUNFLOWERPLANTINGAREATHESUNFLOWERPLANTEDINTHENTHERNC...
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