The paper erects math model of determined ammomial nitrogen compound uncertainty by prismatic photometer.
建立了分光光度法测定水中氨氮含量的合成不确定度的数学模式。
The effects of basic nitrogen compound on the oxidation stability and light stability of Liaohe base oils were investigated.
首先考察了碱性氮化物对辽河基础油氧化安定性的影响，其次考察了碱性氮化物对辽河基础油光安定性的影响。
Use sulphur acid treatment oil, but divided by some includes the sulphur compound, includes the nitrogen compound and colloid.
是用硫酸处理油品，可除去某些含硫化合物、含氮化合物和胶质。
Disposing with topping and not topping in K326 growth duration, researching the change law of protease and nitrogen compound in fresh tobacco leaves.
K326生长期间进行打顶和未打顶处理，研究鲜烟叶片蛋白酶及含氮化合物的变化规律。
The commercial test has shown that LBO-16H catalyst exhibits good performance of hydrothermal stability and fluidity and anti-alkaline nitrogen compound contamination.
工业试验表明，LBO-16H催化剂有较高的活性稳定性和良好的流化性能，抗碱氮能力强；
The principle and process of producing potassium-nitrogen compound fertilizer and aluminium hydroxide from potash alum are studied. Some problems are solved through the pilot test.
利用四川某含钾岩石制得的钾明矾进一步制备硫酸型钾氮肥和氢氧化铝，从原理、工艺等方面进行探讨，并通过中试解决了工业化生产所出现的问题。
They found that turning the air off for a set amount of time maximized nitrogen and organic compound removal.
他们发现，在一定时间内关闭空气流通可以最大程度上减少氮和有机化合物的含量。
The results showed that the compound microorganism preparation improved water quality and decreased significantly the ammonia nitrogen in water.
试验表明，复合微生物制剂对改善水质，降低水体中的氨氮具有明显作用。
An organic coordination (complexing) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.
一种配位(络合)化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。
Sand culture experiment, electron microscopy technique were used to investigate the compound effects of nitrogen and zinc on nodule development and ultrastructure of white clover.
采用砂培试验和电子显微技术，研究了不同水平氮锌配施对白三叶草根瘤发育和超显微结构的影响。
The compound semiconductor contains at least nitrogen.
化合物半 导体至少含有氮。
In this research, compound amino acids (glutamic acid and arginine) were added in litchi juice as nitrogen source and their effects on the fermentation progress were studied.
研究在荔枝汁发酵中添加复合氨基酸(谷氨酸、精氨酸)作为氮源物质对发酵进程的影响。
A novel compound barrier constructed with HCl modification zeolite and calcite was reported to control phosphorus and nitrogen release from sediments.
通过模拟试验，研究了沸石和方解石复合覆盖层控制底泥氮磷释放的效果及机理。
Reduced products were analyzed by GC to determine of nitrogen-fixation activity in biologically compound fertilizer.
采用气相色谱测定还原产物，以确定复合菌肥料的固氮活性。
The mixed layer contains an organic compound which contains no nitrogen atoms, i. e. , an organic compound which dose not have an arylamine skeleton, and a metal oxide.
混合层包含不含氮原子的有机化合物，即不含有芳胺骨架的有机化合物，和金属氧化物。
The nitrogen improves the transformation from simple protein to compound protein and the phosphorus is benefit to the synthesis of simple protein.
施磷促进简单蛋白质向复合蛋白质转化，氮肥有利简单蛋白质合成。
The oxidation efficiency and influence factor of this two kinds of organic compound contain nitrogen in supercritical water were investigated.
研究了这两种含氮有机物在超临界水中的分解氧化效率及其影响因素。
A new triazene compound is synthesized by nitrogen coupling reaction of the diazonium salt.
通过重氮盐的氮偶联反应，合成三氮烯类新试剂。
The effects of compound stresses of Zn and Cr on carbon and nitrogen metabolisms of rice plant were investigated in a soil pot experiment at tillering stage.
通过盆栽试验，研究了锌铬复合胁迫对水稻植株碳氮代谢的影响。
Thymine: Organic compound of the pyrimidine family, often called a Base, consisting of a ring containing Both nitrogen and carbon atoms, and a methyl group.
胸腺嘧啶：一种嘧啶类有机化合物，通常叫做基底，由含有氮和碳原子以及甲基的环形物组成。
Tetrazole is the unsaturated energetic heterocyclic compound with high nitrogen content and good stability leading to the high energy yet low sensitivity materials.
四唑属富氮且稳定性较好的化合物，。是目前研究较多的高能钝感含能材料。
The invention discloses a plant of pseudomonad and the application thereof in the biological removal of nitrogen heterocyclic compound.
本发明公开了一株假单胞菌及其在生物去除含氮杂环化合物中的应用。
A field experiment was conducted to study the effects of 4 compound nitrogen fertilizer synergists on the growth and yield of maize and urea-N utilization by it.
在大田小区试验条件下，研究了复合氮肥增效剂对玉米生长、产量和尿素氮利用的影响。
Zeolite is a natural and cheap mineral, which could be used in the removal of ammonia nitrogen, organic compound, turbidity, heavy metal and oxyanion from water.
沸石是一种天然廉价矿物，可用于去除水中氨氮、有机物、浊度、重金属离子和含氧酸阴离子。
Zeolite is a natural and cheap mineral, which could be used in the removal of ammonia nitrogen, organic compound, turbidity, heavy metal and oxyanion from water.
沸石是一种天然廉价矿物，可用于去除水中氨氮、有机物、浊度、重金属离子和含氧酸阴离子。
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