基本解释：定氮球管
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This article solves limitation of determination of nitrogen in anthracite and coke -Macro Kjeldahl method,which requires long reaction times with the potential loss of nitrogen from the system before completion of the test, sometimes it can't determinate nitrogen.针对传统开氏定氮法测定煤和焦炭中氮含量时消化时间过长,导致测定结果偏低有时甚至测不出结果的缺陷,应用半微量蒸汽法测定煤和焦炭中氮的含量,对半微量蒸汽法使用的催化剂和水蒸气的流量进行了研究,并确定了高温使用的热解管,通过和标准煤样的对比试验,对方法的准确度和精密度进行了研究。
Synthesis and microstructure of nanocrystalline Al-Zn-Mg-Cu alloy powders by cryomilling;液氮球磨制备Al-Zn-Mg-Cu纳米晶粉末及组织分析
%) alloy powders were fabricated by mechanically milling at cryogenic temperature(cryomilling) in liquid nitrogen.用液氮球磨技术制备了纳米晶Al-10。
5083 aluminum alloy and B4C/5083 composite powder were prepared by cryomilling method to produce nanocrystalline powder,and its microstructure and tensile properties were studied.利用液氮球磨法制备了5083铝合金和B4C/5083复合材料,对该材料的微观结构和拉伸性能进行了研究。
An enzyme of nitrogen-fixing bacteria that activates the conversion of nitrogen to ammonia.定氮酶在固氮细菌中催化氮转化成氨的一种酶
Comparison of Determining the Soil Total Nitrogen Concentration with a Continuous Flow Injection Analyzer and Kjeldahl Method流动注射法与凯氏定氮法测定土壤全氮的比较
Discussion for Determination of Nitrogen Contend in ABS Resin by Full Automatic Azotometer应用全自动定氮仪测定ABS树脂氮含量的探讨
Rapid Determination of Ammoniacal Nitrogen in Silage by Automatic Kjeldahl Apparatus自动凯氏定氮仪快速测定青贮饲料中的氨态氮
Nitrogen measurement in infantile zhili syrup by Kjeldah method凯氏定氮法测定小儿智力糖浆中总氮含量
Fertilizers--Determination of nitrate nitrogen content--Nitron gravimetric methodGB/T3597-1983肥料中硝态氮含量的测定氮试剂重量法
determination of kjeldahl nitrogen (method after mineralization with selenuium)克耶达定氮的测定 -加硒矿化后方法
Simultaneous determination of the total nitrogen,ammonium-nitrogen,nitrite-nitrogen,and nitrate-nitrogen in wastewater by continuous fluxion analysis连续流动分析法同时测定污水中总氮、氨氮、亚硝酸盐氮、硝酸盐氮
apparatus for rapid determination of nitrogenoxide氧化亚氮快速测定器
electrochemical NOx meter电化学氮氧化物测定仪
Isolation and Identification of Endophytic Nitrogen-fixing Bacteria and Different Levels of N on Nitrogen Fixation in Sugarcane;甘蔗内生固氮菌的分离鉴定与不同氮水平对其固氮的影响
Simultaneous Determination of Clozapine, Olanzapine and Mirtazapine in Human Plasma by LC-MS/MSLC-MS/MS同时测定人血浆中氯氮平、奥氮平和米氮平
To convert(nitrogen) into stable, biologically assimilable compounds.固氮把（氮）转变成稳定的、能被生物吸收的化合物
MgO/AlN Composite Fabricated by Directed Metal Nitridation;定向金属氮化法制备氧化镁—氮化铝复相材料
Screening and Identifying of a Novel Denitrogenation Microorganism and Study on Its Nitrogen Removal Mechanisms;一株新型脱氮微生物的分离鉴定及其脱氮机制
Construction,Identification and Its Denitrogenate Ability of Nitrogen-Cycling Bacterium Functional Group氮循环菌群的构建鉴定及其脱氮性能研究
Spectrophotometric determination of copper with 2-chloro-4-bromo-benzenediazoaminoazobenzene2-氯-4-溴苯基重氮氨基偶氮苯光度法测定铜
Identification of endogenous nitrogen-fixing bacteria of Polygonum viviparum and analysis on nitrogen fixation gene(nifH)珠芽蓼内生固氮菌鉴定及其固氮基因分析
