可从data . worldbank.org.cn获得的大部分数据均为汇总后的国家级数据。
Most of the data available from data.worldbank.org are aggregated national data.
结果表明反应对铈离子为一级，对异丁醇的表观反应级数为正分数。
The reaction order of was found to be unity and that in isobutyl alcohol to be positive fractional.
本文研究了形式级数域中若干连分数例外集。
In this article, we discuss some exceptional sets in formal power series field.
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