This paper presented the application of N. N. D analytical method for trace sulphur content in photographic material, and discussed the effect factors in analytical accuracy.
本文介绍了微量硫的N、N、D分析法在感光材料中硫含量测定的应用。讨论了影响分析准确度的因素。
N-(L-aminoacyl)-1, 2, 3, 4-tetrahydrochysene carboline acyl aminoacid benzyl ester, synthetic method and application thereof.
氨基酰）-1，2，3，4-四氢咔啉酰氨基酸苄酯及其合成方法及应用。
The relationship between yield and fertilizer application was studied by means of "3414" method under different amounts of N, P and K applied .
采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下，油菜产量与施肥的关系，应用回归效应方程寻找最优施肥量组合。
This invention relates to the method for synthesizing the derivates of pyrrole-aryl N- oxalic ester and its application.
本发明涉及一种芳基吡咯N-草酸酯类衍生物及制备和应用。
The invention discloses a cyclic n-heterocyclic double-carbene metal complex which is connected through alkyl chain, a preparation method and the application.
本发明公开了通过烷基链连接的环状氮杂环双卡宾金属配合物及其制备方法与应 用。
The invention discloses a cyclic n-heterocyclic double-carbene metal complex which is connected through alkyl chain, a preparation method and the application.
本发明公开了通过烷基链连接的环状氮杂环双卡宾金属配合物及其制备方法与应 用。
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