nnf的例句大全

through decanoic acid, alpha-lipoic acid and diethylenetriamine intermediates for synthesis of imidazoline class, the synthesis of imidazoline further with fluorine-containing surfactants, which introduces high temperature fluorinated groups, access to the new anti-h2s/ co2high temperature corrosion inhibitor nnf.

通过葵酸、辛酸与二乙烯三胺合成咪唑啉类中间体，该咪唑啉与含氟表面活性剂进一步合成，从而引入了抗高温的含氟基团，获得了新型抗H2S/CO2高温缓蚀剂NNF。

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The yield of winter wheat and summer maize were kept quiet low and steady when NNF was applied for more than 4 seasons.

连续四季以上不施氮使冬小麦和夏玉米产量分别稳定在1693～1807kg/hm2和4575～4782kg/hm2范围的较低水平。

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Polarization curve testing found that the NNF is a hybrid inhibit, adsorption of membrane-type inhibitor.

极化曲线测试发现，缓蚀剂NNF是一种混合抑制吸附膜型缓蚀剂。

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Winter wheat yield was much reduced comparing with that of summer maize under NNF.

不施氮条件下，冬小麦的减产幅度大于夏玉米。

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Electron microscope scanning surface morphology and XRD analysis showed that inhibitor NNF reduce the increase in the oxygen, sulfur, to form a continuous dense FeS protection film, preventing corrosion.

电镜扫描表面形貌分析和XRD表明，缓蚀剂NNF使氧元素增加、硫元素减少，能形成连续致密的FeS保护膜，阻碍了腐蚀的发生。

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NNF for more than two seasons reduced both winter wheat and summer maize yield significantly.

连续二季和三季不施氮使冬小麦和夏玉米产量都大幅度减产；

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For radar using purpose, The data algorithms for NNF and the adaptive a-P filtering and prediction based on "CV" model are studied emphatically.

根据实际雷达跟踪要求，对NNF数据关联算法和基于CV运动模型的自适应滤波与预测算法等作了重点研究。

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This paper discusses some issues in nested relational databases, which mainly include the e-valuation on two normal forms PNF and NNF, missing information and the conversion form flat rela-tional schema to nested relational schema.

本文讨论了嵌套关系数据库中的一些问题，主要包括对两种范式PNF和NNF的评价、空值和从平面关系到嵌套关系的转换。

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