本文研究了采用超量取代法配制大掺量粉煤灰混凝土的工程应用技术。
In this paper, the engineering application research on using super-substitute technique to prepare concrete added with high-volume fly ash was reported.
系统介绍了间苯二酚诸多的合成方法，并对其中的磺化法、异丙苯法、芳化法和取代法进行了简要的评述。
The synthesis methods of resorcinol were introduced systematically in this paper, and the summary comments for every means were made.
系统介绍了间苯二酚诸多的合成方法，并对其中的磺化法、异丙苯法、芳化法和取代法进行了简要的评述。
The synthesis methods of resorcinol were introduced systematically in this paper, and the summary comments for every means were made.
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