求翻译：农业引进外资必须坚持服务和服从于确保主要农产品有效供给，维护国内农业产业安全和农民利益的基本要求。是什么意思？

Introduction of foreign capital in agriculture must adhere to the service and subject to ensure the effective supply of main agricultural products, maintenance of domestic agricultural industry security and basic requirements of farmers ' interests.