Biological powdered activated carbon enhanced the growth of nitrifier by absorbed toxic or inhibitory substance.

生物活性炭吸附对菌产生毒性和抑制物质、强菌在炭表面生长。

The dissolved oxygen had greater effects on heterotrophic bacteria,ammonifying bacteria and nitrifying bacteria.

溶解氧对异养细菌、氨细菌、细菌有较大影响。

Nitroglycerin is obtained by nitrating glycerol.

甘油是经过丙三醇得来。

Mathematical model about injection nitrator producing nitroglycerine is founded and several assumptions are put forth in this paper.

对喷射器生产甘油进行模拟计算。

Correlation of nitrotyrosine and glutathione peroxidase with age, sex, body mass index, blood pressure, glycometabolism and lipometabolism was analyzed.

分析酪氨及谷胱甘肽过氧物酶与年龄、性别、体质量指数、血压、糖代谢、脂代谢等指标相关性。

Amino phthalhydrazide was synthesized from phthalic anhydride by four steps of nitrationidehydration, hydrazinolysis and reduction reactions in this paper.

以邻苯二甲酐为原料,经、脱水、肼、还原等步骤合成3-氨基邻苯二甲酰肼。

A reference material for calibrating and verifying the calorimeter of propellant explosion heat is composed of nitrocellulose(NC),nitroglycerine(NG),centralite and vaseline.

采用棉、甘油、中定剂和凡士林为火药爆热热量计检定用标准物质组成成分,通过生产工艺制备出该标准物质。

Short rod bacteria and spirillum were dominant in the denitrifying reactor.While cocci were the dominant bacteria in the nitrifying reactor.

于脱槽中是以短杆菌和弯曲杆菌为势菌，而于槽中则是以球菌为主势菌。

If the wastewater concentration was too high, it would stimulate fungus, aminate bacteria, denitrifying bacteria and some anaerobic bacteria to propagate.

污水浓度过大，会刺激土壤中真菌、氨细菌、反细菌及一些厌气性菌繁殖。

The nitrocellulose produced by this method is EXPLOSIVE and can deflagrate or even detonate violently on shock, friction, or spark when dry.

纤维素被生产以这个方法是易爆, 可能猛烈地迅速燃烧甚至起爆在震动、摩擦, 或火花当干燥。

The development and application of organosilicone modifying acrylic resin,polyurthane,nitrocotton and casein etc. in leather chemical materials at home and abroad are introduced.

介绍国内外有机硅改性丙烯树脂、有机硅改性聚氨酯、有机硅改性棉、有机硅改性酪素等在皮材料中发展及应用情况。

Nitro 1,2,4 triazole 5 one(NTO)can be obtained by nitrating 1,2,4 triazole 3 one (TO) under different conditions,and nitrobenzyl derivatives of TO are prepared as well.

研究1，2，4三唑酮3（TO）衍生物合成，结果表明TO在多种条件下均可制得3基1，2，4三唑酮5（NTO），同时还合成TO二取代基苯衍生物。

This paper presents the studies on the reaction form of urea or nitrourea which condenses with nitrolysis fragments of urotropine to form Keto-RDX in nitrating agents.

通过改变加料方式来研究脲或基脲在剂中与乌洛托品解碎片进行缩合反应形式。

The most common method of biological nitrogen removal is by combining the nitrification of the autotrophic nitrobacter and nitrosomonas with the denitrification of heterotrophic denitrifying bacteria.

生物除氮最常利用是将自营性菌、亚菌之作用与异营性脱菌之脱作用结合。

It alsoshowed that more than one week was needed to activate Nitrosomonas by dailyaddition of 1.5 g NH4Cl and another 50 ml nitrifying bacteria to this system.

继续添加1.5克氯铵和50毫升细菌液，需一星期活亚菌。

The isomer ratio of o-MNT to p-MNT,the degree of dinitration and the ratio of 2,6-DNT to 2,4-DNT have been investigated in the mononitration product of toluene by mixed acid.

通过改变反应条件,研究硫混剂对甲苯一段产物邻对异构体比例、二程度及2,6-二基甲苯与2,4-二基甲苯生成比例影响。

To increase the precision of the electric igniting parameters of common fusehead, a kind of wrapper such as NC or CMC,can be used to wrap the bridge wire in common fuse head .

为提高普通点火头发火参数精度,可以在桥丝上涂覆一层棉或羧甲基纤维素涂层。