稻麦两熟制 meaning in Chinese

rice-wheat growing system
rice-wheatgrowingsystem

Period , qin and han dynisties ( 221 b . c . - 220 ) period , three kingdoms and jin dynasty ( 220 - 420 ) period , sui and tang dynasties ( 581 - 907 ) period , song and yuan dynasties ( 960 - 1368 ) period , and ming and qing dynasties ( 1368 - 1911 ) period ; the agricultural exploitation progressions were made step by step , and were going upward from the basin to the hill and mountain areas with comprehensive , vertical and cash crops system emphasized in different stages
第六章宋元时期陕南农业的全面发展宋元时期，作为农业开发的基础一人口出现了较快的增长，为农业发展提供了丰富的劳动力。同时，由于陕南地处战略形胜之地，宋王朝在此进行了大规模的屯田。增修水利工程，倡行稻麦两熟制，发展梯田农业，重视农业的多种经营成为宋元时期陕南农业开发的主体。