例句 /

This paper proposes the indexes for the climatic division and suitability of tobacco growth in Yunnan according to the regional climatic characteristics: heat resource as primary index while precipitation and sunshine duration as secondary indexes.

This paper proposes the indexes for the climatic division and suitability of tobacco growth in Yunnan according to the regional climatic characteristics: heat resource as primary index while precipitation and sunshine duration as secondary indexes.

摘要根据云南烤烟气候特点,提出了判别云南烤烟气候类型及其适宜性的指标:热量为一级指标,降水和光照为二级指标。