Multi phase PSZ micro_powders were prepared by low temperature combustion synthesis (LCS) method, with which nitrates were used as oxidizers while urea as fuels.
用水合硝酸盐作氧化剂、以尿素为燃料 ,根据推进化学计算原料的配比 ,进行了复相PSZ超细陶瓷粉的低温燃烧合成 。
The regioselective nitration of toluene and chlorobenzene with nitrates and supported nitrates on solid acid catalysts and supports in the presence of acetic anhydride is studied.
该文讨论了应用固体酸催化剂和载体，在醋酐存在下，采用硝酸盐和载体硝酸盐硝化甲苯和氯苯的选择性。
With the method of competitive nitration,reactivity of aseries monosubstituted benzene compared to benzene can be obtained,and the Hammett equation for the nitration with metallic nitrates inthe presence of acetic anhydride can be established with the reactionconstant ρ=-6.
利用竞争硝化法可以求得一系列单取代苯相对于苯的反应活性,据此就能建立金属硝酸盐—醋酐硝化反应的Hammett方程,求得该反应的反应常数ρ=-6。
Study on extraction of nitrite and nitrate in vegetable by solvention;
溶剂法提取蔬菜中硝酸盐、亚硝酸盐
The Examination and Significance of Nitrite in the Pure Water in the Automatic Magnetization Electrothermal Drink Machine;
自动磁化电热饮水机桶装纯净水中亚硝酸盐的检测及其意义
Content of Nitrate,Nitrite,Vitamin C,Organic acid and total Sugar of Zingiber officinale in Plastic Greenhouse;
大棚生姜V_C·硝酸盐·亚硝酸盐·总糖·有机酸含量测定
Research situation of nitrate accumulation in vegetable and its developing trend;
我国蔬菜硝酸盐积累研究现状调查及发展趋势——基于文献计量学的统计分析
Field experiments were carried out to study the effect of nitrogen amount on yield and nitrate accumulation in peppers.
在施等量有机肥的前提下,随着施氮量的增加,辣椒营养生长旺盛,株高株幅增加;辣椒产量在一定范围的施氮量内逐步增加,超过一定施氮量反而下降;随着施氮量的增加,辣椒果实和叶片的硝酸盐含量均随之上升,其中以叶片中积累量最高,其次是果皮,果肉中硝酸盐的含量最低;各处理对辣椒亚硝酸盐的积累没有影响。
The research project make use of field experiment and plant test strip-reflect meter to discover the effects of different drip irrigation and nitrogen fertilizers on potato nitrate accumulation.
通过田间试验,采用植株反射仪来探讨了不同滴灌量和施氮量对马铃薯硝酸盐累积影响,试验结果表明:在滴灌条件下,在马铃薯现蕾期和块茎膨大期,随着滴灌量的增加,马铃薯叶柄硝酸盐有降低的趋势,但随着施氮量的增加,马铃薯叶柄硝酸盐也随着增加。
Detection and Control the Nitrite in Meat Products;
肉制品中亚硝酸盐的检测和控制
Research of a test paper for quick checking of nitrite adulterated in milk;
牛乳中亚硝酸盐快速检测试纸的研制
Main Influencing Factors of Nitrite Content in the Processing Production of Preserved Szechuan Pickle and Their Optimizations;
榨菜生产加工中亚硝酸盐含量的主要影响因子及其优化
Fast Testing of nitrate Content in water with Spectrophotometry;
分光光度法快速测定嘉陵江水体中硝酸盐氮
Improvement on tolerance of Spirodela polyrrhiza to ammonia at presence of nitrate;
硝酸盐氮对紫背浮萍氨耐受能力的影响(英文)
nitrate and sulphate reduction
硝酸盐与硫酸盐还原
nitrate and iodate minerals
硝酸盐和碘酸盐矿物
Nitrite and Nitrate Denitrification Comparative Study
亚硝酸盐反硝化与硝酸盐反硝化对比研究
Mild powder--Determination of nitrate and nitrite contents(Cadmium reduction and photometry method)
GB/T5413.32-1997乳粉硝酸盐和亚硝酸盐的测定
The Manufacture of an Online Nitrite and Nitrate Measuring Instrument
亚硝酸盐和硝酸盐在线监测仪的研制
Pollution and Evaluation of Nitrate and Nitrite Contained in the Vegetables Sold in Yancheng
盐城市蔬菜硝酸盐和亚硝酸盐污染状况及评价
Microwave extraction technology of nitrate and nitrite from sauerkraut
微波法提取酸菜中硝酸盐及亚硝酸盐工艺研究
Nitracidium and hydronitracidium nitrastes are present in concentrated nitric acid.
浓硝酸中有硝酸合氢和氢合硝酸合氢的硝酸盐存在。
nitrite ion standard solution
亚硝酸盐离子标准液
nitrate cracking
热硝酸盐应力腐蚀开裂
nitrate and chloride concentrations
硝酸盐和氯化物浓度
nitrate reductase inhibitor
硝酸盐还原酶抑制剂
increased concentration of nitrates in water
水中硝酸盐浓度的增加
soil enriched with nitrates
施硝酸盐肥料的土壤.
Nitrates fertilize soil.
硝酸盐使土地肥沃。
Determination of Serum Nitrate Concentration by Nitrate Reductase One Step Method
硝酸盐还原酶一步法测定血清中硝酸盐浓度
Content Changes of Nitrate and Nitrite in Pickled Cucumber;
腌制黄瓜硝酸盐与亚硝酸盐的动态变化
Effects of Fertilization on the Nitrate and Nitrite Contents in Flue-Cured Tobacco;
施肥对烤烟硝酸盐和亚硝酸盐含量的影响