短語(yǔ)詞組短語(yǔ)Zero -tillage 免耕zero -tillage rice fields 免耕稻田natural zero -tillage 自然免耕direct sowing with zero -tillage 免耕直播zero tillage system 免耕法stubble field zero tillage 茬地免耕zero tillage corn field 免耕玉米田 返回 zero tillage