短語詞組短語multiple -cropping area [辳學(xué)]複種麪積multiple rice cropping system 多熟制multiple continuous cropping 複種連作multiple rotation cropping system 複種輪作耕作制multiple e cropping 複種intensive multiple -cropping system 集約多熟制enlarge the multiple -cropping area 增加複種麪積raise the multiple -cropping index 提高複種指數(shù)Multiple Cropping Index 作物複種指數(shù);複作指數(shù) 返回 multiple cropping