消云
- 【大气】cloud dissipation
消云-
17世纪在欧洲史上可谓是一个危机时代，15、16世纪的繁荣烟消云灭，但它却蕴藏着转机，它标志城市经济向领土国家经济的过渡。
The 17th century was an era of crisis in which the prosperity in the 15th and 16th century disappeared , but it gestated a favorable turn , and indicated a change from the urban economy to the national economy .
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几种消暖云（雾）催化剂性能的实验研究
An experimental study on specific property of several catalytic agent applied in artificial warm cloud and fog dissipation