求翻译：由于地理条件不同，藏南谷地和藏北高原温差很大。南部温和多雨，降雨集中在五月到九月之间。北部属大陆性气候，相对干燥，六月到八月温暖，昼夜温差大。旅游的最佳时间是三月到八月。是什么意思？

Due to the geographical conditions are different, possession of a large temperature difference between the South Valley and the northern Tibetan Plateau. Mild and rainy south, rain falling between May and September. The north has a continental climate, relatively dry, warm from June to August, the t

Because of the geographical conditions are different, and Tibetan South Valley and North Tibet Plateau temperature difference is very large. Southern moderate rainfall, rainfall concentrated in May to September. northern continental climate is relatively dry, and from June to August, day and night t

Because the geography condition is different, the South of Tibet valley land and the North Tibet plateau temperature difference is very big.The south temperate multi-rain, the rainfall concentrate in May to September between.North subordinate continental climate, relatively dry, in June is warm to A

Because of the different geographical conditions, South Tibet Valley and the Northern Tibetan plateau temperature difference is large. Mild and rainy in the South, rainfall is concentrated in between May to September. A continental climate in the North, relatively dry, June to August is warm, large

Because of the different geographical conditions, South Tibet Valley and the Northern Tibetan plateau temperature difference is large. Mild and rainy in the South, rainfall is concentrated in between May to September. A continental climate in the North, relatively dry, June to August is warm, large