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2.iso-Butyl benzoate can be used at 20.5℃ for analysing 0—4 mol% D_2O. Calibration curves for these media are shown in Fig. 9 and 10~* (in Chinese text).
苯甲酸异丁酯在20.5°时适用于分析0—4克分子％D_2O浓度范围。收藏指正
3.The average percentage contents of N,P,K,Ca and Mg in the litters for the3stands was1.08,0.07,0.37,1.37and0.21respectively. In general,the average fig ure in sharp tooth oak stand was much higher than in Armand pine and Chinese pine stands,but there was no evident difference between that in Armand pine and Chinese pine stands.
3种林分凋落物N、P、K、Ca和Mg含量平均值分别为1.08%、0.07%、0.37%、1.37%和0.21%,锐齿栎林较大,油松林和华山松林则差异不大。收藏指正
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