查询词典 nitrogen

We reviewed the progress in soil analysis for readily available nitrogen, phosphorus and potassium made in the last 20 years, such as the application of salicylic acid and test strip for nitrate analysis, Mason Jar for nitrogen analysis , malachite green for phosphorus analysis, and flow analysis for different element based on different reactions.

从文献检索结果和国内土壤氮、磷和钾测定的实际来看，我国在土壤氮、磷和钾测定方法研究、测定仪器的开发与生产方面与国外仍有较大差距，土壤养分测定工作的差距主要在以下几个方面：(1)研究人员少。

The 32 wheat cultivars were classified as three types by cluster analysis of low nitrogen sensitivity type, mean type and low nitrogen tolerate type.

这32个小麦品种可分为低氮敏感型、中间型和耐低氮型。

Nitrogen oxides emission from a series of turbulent methane jet non-premixed flames with different Reynolds number was numerically simulated, in order to investigate the influence of turbulence on the formation of nitrogen oxides.

对一系列具有不同Reynolds数的湍流甲烷射流扩散火焰中氮氧化物的排放进行了数值模拟，以考察湍流对氮氧化物排放的影响。

Has established the Avey rhzomorph through the field test remains the analysis method in the sea cabbage and the soil, and remained to it in the sea cabbage and the soil has carried on the determination, the sample with the methyl cyanide extraction, after extracting the revolving concentration nearly did, with the few methyl cyanides dissolves, passed through PRS the solid phase extract column to purify again, eluent air-dried after the nitrogen with the nitrogen methyl imidazole and the trifluoroacetic acid bitter wine grows, the derivative with the highly effective liquid chromatography analysis, used the external standard legal quantity.

通过田间试验建立了阿维菌素在甘蓝及土壤中的残留分析方法，并对其在甘蓝和土壤中的残留进行了测定，样品用乙腈提取，提取液旋转浓缩近干后用少量乙腈溶解，再经PRS固相萃取柱净化，洗脱液经氮气吹干后用氮甲基咪唑和三氟乙酸酐衍生，衍生物用高效液相色谱分析，采用外标法定量。

The use of acid protease in the production of machine-made yellow rice wine (by non-glutinous rice) could provide nitrogen source for the growth and reproduction of microzyme and accelerate rapid reproduction of microzyme (which improve fermentation stability and capability), decompose proteins (which advanced the use of amylum in raw materials and increased wine yield), and settled the commonly existed problems of low aminophenol nitrogen content and non-sugar solids content.

酸性蛋白酶在粳米黄酒酿造中可为酵母菌的生长繁殖提供氮源，促进酵母菌的快速繁殖，提高发酵过程的稳定性和能力；分解原料中的蛋白质物质，促进对原料淀粉的利用，提高原料的出酒率；可有效解决机制粳米黄酒过程普遍存在的低氨基酸态氮、低非糖固形物的问题；酸性蛋白酶在发酵酒醅中的澄清作用，为黄酒成品解决非生物浑浊提供了方法。

Nitrogen mineralization is one of the most important aspects in soil nitrogen circulation.

氮的矿化是土壤氮循环中的重要环节之一。

The results showed that nutrient ions were further absorbed and transported selectively and the harmful ions of salt were further restrained with the application of nitrogen and phosphorus. It is an effective way to increase saline tolerance and seed yield of oil sunflower by the use of nitrogen and phosphorus in the coastal mudflat of northern Jiangsu.

说明N肥和P肥的施入增强了油葵对营养离子的选择性吸收与运输，抑制了油葵对盐害离子的选择比吸收与运输，表明在苏北沿海海涂上施用肥料能够改善油葵营养状况并增强油葵耐盐性，对于增加油葵籽粒产量是一个很有效的办法。

Nitrogen narcosis is a condition of confusion or stupor resulting from increased levels of dissolved nitrogen in the blood, occurring when breathing compressed air.

当呼吸压缩的空气时，氮醉是一种各级溶解的氮在血里混乱或增加的昏迷现象发生。

Nitrification is one of the most important step is the nitrogen cycle, this series of reactions are responsible for chemoautotrophic nitrobacteria, therefore the chemoautotrophic nitrobacteria play an important role in nitrogen cycle.

摘要 硝化作用为整个氮循环的必须步骤之一，这一连串的反应主要由自营性的硝化菌负责，因此，自营性硝化菌在氮循环中扮演著关键的角色。

This paper, the experimental research on contribution of Al and RDX and high nitrogen content nitrocotton to a screw CMDB propellant, is carried out, a proper content about Al, RDX is selected in this propellant, and a problem of the propellant mechanical properties which use high nitrogen content nitrocotten is solved.

研究了Al粉、RDX及高氮量硝棉对螺压高能改性双基推进能量的贡献，配方选择了比较合适的Al粉、RDX含量，解决了采用高氮量硝棉的推进剂的力学性能问题。

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