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1)chemical sediment,»¯Ñ§³Á»ýÎï

2)speleothems,¶´Ñ¨»¯Ñ§³Á»ýÎï

3)speleothem,¶´Ñ¨´ÎÉú»¯Ñ§³Á»ýÎï

4)chemistry,»¯Ñ§

5)chemical,»¯Ñ§

6)chemical exergier,»¯Ñ§ª§

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In recent decades, the study of the paleoclimatic records and paleoecological paleoenvironmental meanings of speleothems ach.

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Iso to pic study of speleothems is a very important way for reconstructing palaeo-envi-ro nment,A lot of results have been obtained in the radioactive isotopic dating and theapplication of ¦Ä£þ(18)O to temperature measurement.

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Ca~(2+),Mg~(2+) contents of cave water and their changes are the basic and direct reflecting carriers to the maturity of speleothems.

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Mathematic model applying problem in chemistry;

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Report of developments of tobacco chemistry in 2006;

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Student self-concept and conceptual understanding in learning chemistry;

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Study about Evaluation Method of Lessons in Higher Chemical Education;

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Thermally and chemically composite activation of coal gangue used in cement as mineral admixture;

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The Present Situation of Agricultural University's Chemical Experiments and Reformatory Thinking;

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Calculation of chemical exergier of paraffin and olefin by using group connectivity index;

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