脱氮的

The results showed that the soil catalase and dehydrogenase activities, soil microbial biomass N and microbial biomass C were restrain somewhat by four acetanilide herbicides at the beginning of cultivation, but can recover soon.

研究表明，培养初期丁草胺、乙草胺、丙草胺和异丙甲草胺对土壤过氧化氢酶和脱氢酶活性、对土壤微生物量氮和微生物量碳有不同程度的抑制，但均能很快恢复，四种供试酰胺类除草剂对土壤生态的影响不大，除草剂之间也没有表现出显著差异；培养初期rac-异丙甲草胺和S-isomer高浓度处理均比常规用药量处理对土壤酶、土壤BN和Bc的影响大。

In this review, results on biodenitrogenation were summarized of the past ten years, including the metabolic pathway of model compound, genes and key enzymes involved in carbazole degradation.

本文考察了国内外近十多年来化石燃料生物脱有机氮工作的研究进展，包括模式有机氮化合物微生物的代谢途径，以及相应的代谢途径中的关键酶及其编码基因等方面的研究。

Those optimal culture conditions were pH5.3,temperature 30℃,pitching rate 0.5%incubation time 16h and ratio of volume of original brewer's yeast hydrolyzate to volume of water 1∶0.5

将脱除异味的啤酒酵母水解液在低浓度啤酒和高辅料比例啤酒的酿造中应用作为啤酒酿造的补充氮源试验，取得了良好的效果。

Methods: Cell proliferation was measured by crystal voilet staining assay. The activity of lactic acid dehydrogenase in the upper layer of culture solution was tested to examine the damage to the cell membrane.3H-TdR was used to study the effect of porphyrin nitrogen mustard on the synthesis of DNA.

用结晶紫染色法测定卟啉氮芥对人肝癌细胞SMMC7721的光动力抑制效应，用测定培养上清乳酸脱氢酶活性方法研究光动力作用对人肝癌细胞SMMC7721细胞膜的作用，用3H-TdR掺入法研究光动力作用对人肝癌细胞SMMC7721DNA合成的影响。

Nevertheless, as the growth temperature is higher than 675oC, rapid declination in growth efficiency. It suggests that desorption of In adatom occurs at such a growth region instead.

而当长晶温度大於675 oC时，氮化铟的成长率快速下降，我们认为在这长晶的区域内有铟原子的脱逸效应产生。

This experiment adopted lipoic amido dehydrogenase histochemistry method and image pattern analysis technique to investigate the relationship between nitric oxide synthase neurons and activity of NOS and auditory threshold, and to explore the possible role of NOS neurone in cochlear nuclei of guinea pigs after exposed to white noise.

采用硫辛酰胺脱氢酶组织化学方法及图象分析技术，研究白噪声暴露后豚鼠耳蜗核一氧化氮合酶神经元及NOS活性的变化与听阈的关系，探讨豚鼠耳蜗核NOS神经元在白噪声损伤过程中可能的作用。

This experiment adopted lipoic amido dehydrogenase histochemistry method and image pattern analysis technique to investigate the relationship between nitric oxide synthase neurons and activity of NOS and auditory threshold, and to explore the possible role of NOS neurone in cochlear nuclei of guinea pigs after exposed to white noise.

提要 采用硫辛酰胺脱氢酶组织化学方法及图象分析技术，研究白噪声暴露后豚鼠耳蜗核一氧化氮合酶神经元及NOS活性的变化与听阈的关系，探讨豚鼠耳蜗核NOS神经元在白噪声损伤过程中可能的作用。

XRD, 29Si, 27AI MAS NMR, the adsorption of nitrogen at low temperature,129Xe NMR, XPS, IR-TPD, NH3-TPD, the high vacuum volumetric analysis and pulse flow microreaction were used to study the difference in structure and property between the US-SSY zeolites obtained by quick and slow cooling after treating SSY zeolite with steam at high temperature.

应用X射线粉末衍射、29Si、27Al魔角旋转核磁共振、低温氮吸附、129Xe核磁共振、X射线光电子能谱、程序升温脱附和脉冲微反等多种物理、化学手段，详细考察了经高温水蒸汽处理后的超稳Y分子筛在急冷和自冷过程中产生的结构和性能差异，结果表明，冷却速率是制备分子筛必要的控制因素

In order to find highly active pesticide, three series of 5--12-substituent-benzo phenanthridine derivatives were synthesized through the reaction of 2-methylbenzonitrile with dif-ferent aldehyde, and further dehydration with DDQ or N-methylation with NaH and CH3I, respectively.

为了寻找新的高活性农药，利用2-甲基苯甲腈与不同的醛反应，再通过2，3-二氯－5，6-二氰基－1，4-苯醌脱氢或NaH和CH3I氮甲基化，合成了3个系列共18个5-取代氨基－12-取代苯并菲啶衍生物，其中15个是未见文献报道的化合物。

Their specific surface area and porosity parameters were calculated from the nitrogen adsorption-desorption isotherms at 77 K.

所得的炭样品用氮吸附法表征，并根据77K时的吸附－脱附等温线计算了它们的比表面和孔结构参数。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷