铸造生产竞争力
competitive power of casting production
竞争-竞争-互惠
competitor-competitor-mutualist
竞争－竞争－互惠模型
competitor-competitor-mutualist model
竞争-竞争-互惠系统
competitor-competitor-mutualist system
定压、定产生产方式
production mannar at fixed pressure and production
改善农牧民生产生活条件
improve the living and production conditions of farmers and herdsmen
共生竞争
coexistence and competition
竞争生态系统
competion ecological system
人的生产生活
human life and production