The turning period of visibility change took place during 1979-1981, and both the visibility and "very good visibility" frequency of the 11 cities decreased rapidly at that time.
1981年为大气能见度变化的转折期，在此期间11个城市的能见度迅速降低、“非常好”能见度出现频率很快下降。
Santana Series models in the country to maintain volume and visibility are very high, also received the majority of consumers love, rugged, durable, economical Santana Zhijun good advantage.
桑塔纳系列车型在国内的保有量及知名度都非常高，也得到了广大消费者的喜爱，皮实、耐用、经济性好是桑塔纳志俊的优势。
Santana Series models in the country to maintain volume and visibility are very high, also received the majority of consumers love, rugged, durable, economical Santana Zhijun good advantage.
桑塔纳系列车型在国内的保有量及知名度都非常高，也得到了广大消费者的喜爱，皮实、耐用、经济性好是桑塔纳志俊的优势。
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