liquid nitrogen frozen
液
冷冻的
；氨型，氨
量；总量，总量肥；肥肥料；的氧化物源；源物质作用；硝酸盐；脲代谢浓度供应平衡；生物固酌；生物固作用循环化怜化处理liquid nitrogen frozen
液冷冻的
a quarternary nitrogen atom.
和四个碳原子相连的原子
Dinitrogen trioxide、Nitrogen trioxde.
三氧化二;
his work on nitrogen fixation in plants.
他对植物
内固化过程的研究。
nitrogen dioxide is a highly reactive gas.
二氧化是易起化学反应的气。
Nitrogen is a gas without colour or smell.
是一种无色无臭的气。
What is the percentage of nitrogen in air?
空气中所的的比例是多少?
Nonsoluble nitrogen (NSN) and soluble nitrogen (SN) in ten tobacco samples were determined with a flow analyzer.
采用流动分析法测定了10种烟草中的不溶性和可溶性。
lupins fix gaseous nitrogen in their root nodules.
羽扇豆在根瘤中使气态固化。
In this paper,the relation of heterotrophic bacteria to nitrogen and phosphorus in marine environment is studied by adding nitrogen and phosphorus to the seawater in mesocosm.
利用海洋围隔生态系统实验装置,向海水中施加不同浓度的和磷,研究海洋异养细菌与海水环境中、磷的关系。
and advance protein agglomeration and reduce solidifiable nitrogen content to 0.
加强蛋白质凝聚,麦汁可凝固下降0。
"There are several kinds of gas in the air, with nitrogen amounting to the most part."
"空气中有好几种气,所占的比重最大。"
The corresponding solving methods,exsiting in the determination of the amino nitrogen by Nashi colormetric method.
针对纳氏比色法测定氨过程中存在的问题,提出了相应的解决办法。
After the precursor's thermal decomposition under the protection of nitrogen,a kind of nonstoichiometric titanium oxide can be prepared.
用钛粉和草酸反应制得前驱物,在气保护下600℃热分解前驱物制备了一种非化学计量钛氧化物。
It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.
坚牢度和光谱特性,发现磺酰胺和在它的原子上的取代会影响该类染料的性能。
Now, supernutrition is the first problem in Dianchi, and the environment of the lake deteriorate gradually for more total phosphorus and total nitrogen was input.
滇池是整个流域污染物唯一的汇,这也是其难以治理的原因。
Conclusions Obvious negative nitrogen balance and hypoalbuminosis occur after surgery for tumors of digestive system.
结论消化道肿瘤病人术后可出现明显的负平衡和低蛋白血症。
For example, some kinds of soil back bacteria take nitragin nitrogen from the air and make a form that plants can use.The plants keeps keep the nitragin nitrogen in the their roots.
例如，一些土地细菌从空气中吸收，从而形成一种作为可以利用的形式，这些作物讲保存在他们根部。
Triaminoguanidine is a kind of non-azide nitrogen-rich flammable compound, which has some advantages of high nitrogen, good thermal stability, and high positive formation enthalpy, etc.
摘要三氨胍是一种非叠类、富型、可燃性化合物，其系列能化合物具有高的正生成焓、热稳定性好、量高等特点。
Algae microorganisms in the water overpopulate because of the surplus nitrogen.
水中的藻类微生物由于的富余而过度繁殖。
Nonsoluble nitrogen (NSN) and soluble nitrogen (SN) in ten tobacco samples were determined with a flow analyzer.
采用流动分析法测定了10种烟草中的不溶性和可溶性。
Conclusions Obvious negative nitrogen balance and hypoalbuminosis occur after surgery for tumors of digestive system.
结论消化道肿瘤病人术后可出现明显的负平衡和低蛋白血症。
The corresponding solving methods,exsiting in the determination of the amino nitrogen by Nashi colormetric method.
针对纳氏比色法测定氨过程中存在的问题,提出了相应的解决办法。
"There are several kinds of gas in the air, with nitrogen amounting to the most part."
"空气中有好几种气,所占的比重最大。"
Procarbazine, nitrogen mustard, and ifosfamide, which can increase risk for myelodysplastic syndromes and acute myelogenous leukemia.
丙卡巴肼、芥和异环磷酰胺：可增加患骨髓增生异常综合症和急性粒细胞白血病的风险。
Milia in regressing plaques of mycosis fungoides:Provoked by topical nitrogen mustard or not?
蕈样肉芽肿消退斑块发生粟丘疹:是由外用芥引起的吗?
After the precursor's thermal decomposition under the protection of nitrogen,a kind of nonstoichiometric titanium oxide can be prepared.
用钛粉和草酸反应制得前驱物,在气保护下600℃热分解前驱物制备了一种非化学计量钛氧化物。
The wastewater of hexanolactam (nylon) fiber production in Shijiazhuang Synthetic Fiber manufactory is high concentrated with organic nitrogen compounds.
己内酰胺锦纶化纤废水属于高高浓度有机废水。
The cryoprobe soaked in liquid nitrogen is a new cryother- apic instrument with metallic material as its cold storage.
浸冷式液冷刀,系用金属材料为储冷装置的新式冷冻治疗器械。
With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.
用氯化钙作沉淀剂，消除磷酸根离子的干扰，用甲醛法测定复合肥中的总。
The function of hydrocarbons and nitrogen oxides in photochemical smog formation and the formative process of ozone and peroxyacetyl nitrate are discussed.
介绍了氧化物、碳氢化合物在形成光化学烟雾中的作用和臭氧、过氧乙酰硝酸酯产生的过程,并介绍了光化学烟雾的形成机理。
In the last few years,the tripodal ligands bearing nitrogen atoms have drown much attention because of their polydentate,flexility and ease to synthesize.
近年来,三角架配由于其多配位点、半刚性及易合成等特点,引起了人们的广泛兴趣。
It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.
坚牢度和光谱特性,发现磺酰胺和在它的原子上的取代会影响该类染料的性能。
A method for determination of nitrogen in N-MnFe by titrimetry with amidosulfonic acid after alkaline distillating separation has been studied in this paper.
本文研究了强碱蒸馏分离-氨磺酸滴定法测定化锰铁中的分析方法。
Two different kinds of palladium complexes of nitrogen containing polymere havebeen prepared and their catalytic actions for p -nitro -methyl benzfene have been invertigeted.
制备了两种不同的高分子-钯络合物，并研究了它们对对硝甲苯的催化活性。
The results indicate that the modification by heating and acids could not significantly increase the adsorption capacity of the modified stellerite for ammonia nitrogen.
结果表明，加热改性与无机酸改性不能显著提高沸石对氨的吸附量。
The water eutrophication is caused by the incessant accumulation of nitrogen and phosphorus in water and excessive propagation of a few of algal and hydrobios.
摘要水中磷营养物质不断积累，部分藻类及水生生物的过度繁殖，导致了水的富营养化。
It is equipped with asphalt return tube, anti-puffing pressure vent valve, anti-aging overhead nitrogen valve, thermometer, volumeter and output asphalt rapid discharge valve and coupling.
配备沥青溢流管、防冒液呼吸阀、防老化顶置充阀、温度计、容量计和输出沥青的快速卸料阀及接耦。
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