Nanocatalysts were prepared by combining the method of precipitation with that of phase transfer.

通过沉淀法和相转移法的结合制备纳米催化剂。

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Normality of monthly and seasonal precipitation is discussed based on the data of 35 stations. Some method of precipitation normalization are compared.

本文讨论了我国35个测站的月、季降水量以及按区域平均降水量的正态性问题。同时，研究比较了各种降水量正态化的方法和效果。

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Normality of monthly and seasonal precipitation is discussed based on the data of 35 stations. Some method of precipitation normalization are compared.

本文讨论了我国35个测站的月、季降水量以及按区域平均降水量的正态性问题。同时，研究比较了各种降水量正态化的方法和效果。

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