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The acids accumulating in soils and controlling the solution of carbonates including the predominant CO2, mostly derive ......
Based on the total phosphorous (TP) concentration in sediment core, the TP concentration in lake water quantitatively re......
以丙烯腈、甲氨基甲酰氯和异丁醛为原料合成了杀虫剂戊氰威,其杀虫效力与其它杀虫剂对比,说明戊氰威是一种不易产生抗性的优良杀虫剂......
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