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。
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。
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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