根据结构二重性，这些非意图后果又构成农户无公害蔬菜安全生产的前提条件。
According to the duality of structure, those unintended consequences constitute the prerequisite of farmers' pollution-free vegetable production.
根据结构二重性，这些非意图后果又构成农户无公害蔬菜安全生产的前提条件。
According to the duality of structure, those unintended consequences constitute the prerequisite of farmers' pollution-free vegetable production.
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