In this paper the cause of formation of environmental disaster in the western Guizhou is analyzed, it is influenced by natural factor and human activities.
本文分析了贵州西部环境灾害的形成原因，它既受自然因素的影响，也受人类活动的影响。
The poets awakening of his natural inherent quality and principal consciousness is the root cause of the formation of landscape poetry.
诗人自然本性和主体意识的觉醒是山水诗形成的根本原因。
Then discuss the acid formation from the soil quality, atmosphere grain, NH 3 and weather forms, point out these natural factor's difference is the most important cause of acid rain formation.
接着从土壤性质、氨气、大气颗粒物和天气形式等自然因素方面探讨了中国酸雨现状的形成原因，指出南北方这些自然因素的差异是酸雨现状形成的最重要原因。
They have special cause of formation. In connection with the necessary processes of movement of natural persons, many countries set up four principal barriers.
各国在自然人流动所必经的各阶段对其层层设卡，从而形成了四大类型的自然人流动壁垒。
They have special cause of formation. In connection with the necessary processes of movement of natural persons, many countries set up four principal barriers.
各国在自然人流动所必经的各阶段对其层层设卡，从而形成了四大类型的自然人流动壁垒。
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