查询词典 nitrogen-free

In order to enhance the bio-nitrogen and phosphorus removal of the modified Carrousel oxidation ditch process,the treatment performance,the principle of bio-nitrogen and bio-phosphorus removal have been discussed,at the same time the influencing factors to the effluent quality have been analyzed from the operation practice for 3 years.

为了提高改良型Carrousel氧化沟工艺污水处理厂的脱氮除磷效果，结合某污水处理厂3年的运行实践，讨论了该工艺的处理效果，生物脱氮除磷原理及影响出水效果的因素。

Based on the nitrogen content measured vial Kjeldahl nitrogen detection equipment,the substituted degree of cellulose nitrate by nitric acid was calculated to be 2.75 per glucose unit.

分别把NanoG、RNG和ONG加入到硝酸纤维素的丙酮溶液中，经过超声波震荡处理，挥发溶剂后得到三种纳米石墨导电复合膜。

This experiment has researched the Ecological Balanced Fertilization Model's four parameters, namely, P、Lfsp、T_(n+1)、T_n; And applicating four parameters forecasted the dosage of nitrogen fertilizer of soybean in Themeadow Chernozem, soybean output reached 2800kg·hm~(-2), it required 78.86kg·hm~(-2) pure nitrogen.

本试验系统研究了生态平衡施肥模型的四个参数，即P、Lfsp、T_(n+1)、T_n；并初步应用四个参数对草甸黑土大豆生态平衡施氮量进行预测，大豆产量达到2800kg·hm~(-2)，需施纯氮78.86kg·hm~(-2)。

However, There is not the report about the effects of nitrogen on yield, quality and key enzymes in nitrogen metabolism of Chinese chive in a hydroponics system.

本试验以6韭菜品种为试材，研究了氮素营养对韭菜生理效应、氮代谢关键酶及硝态氮对不同韭菜品种的根系生长的影响，以期为韭菜低硝酸盐富集品种的选育及无土栽培提供理论依据。

In the nitrogen concentration of 8 mmol-L1, cultivar 791 and Hanzhong Chinese chive were studieded in the effects of different nitrogen forms and proportion on growth, nitrate content and the quality of nutrition.

以"791"和"汉中冬韭"为试材，研究了8 mmol·L~(-1)氮素水平下不同氮素形态及配比对791和汉中冬韭的生长状况、硝酸盐含量和营养品质的影响。

ABSTRACT nine fitted with rumen fistula proximal duodenum and the Inner Mongolia Cashmere Goats Jieyang (about 2 years old) were randomly divided into 3 groups, respectively fed nitrogen and sulfur than the same sulfur different sources (for sulfur, sulfide sodium and sodium sulfate), three kinds of diet, digestion and metabolism test and determination of chyme liquidity to explore different inorganic sulfur and nitrogen and sulfur deposition of sulfur circulation.

选用9 只装有瘤胃和十二指肠近端瘘管的内蒙古白绒山羊羯羊(2 周岁左右)，随机分成3组，分别饲喂氮硫比相同而硫源不同(分别为硫磺、硫化钠和硫酸钠)的3 种日粮，进行消化代谢试验和测定食糜流通量，以探讨不同无机硫对氮和硫的沉积量以及硫的流通规律。

The influences of heat exchanger and engine on system efficiency are distinguished. The thesis also analysis the efficiency of the compound cycle of liquid nitrogen engine operating on open Rankin cycle together with the liquid nitrogen refrigeration cycle and economy in detail.

首次采用变质量系统热力学原理探讨了通过对进气温度与缸内残余质量温度的控制有助于实现准等温膨胀的可行性；首次采用有限时间热力学对具有压降不可逆液氮发动机开式朗肯循环进行了工作过程分析，研究了漏气和压降对液氮发动机效率和功率的影响关系。

Using a comparative and simulative approach, this study quantitatively explored the effects of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nitrogen across the sediment-water interface and the early diagenesis of nitrogen in tidal sediments from the Yangtze Estuary....

研究表明，谭氏泥蟹主要通过掘穴活动增加沉积物-水-气三相接触界面，促进沉积物中的无机氮(NH+ 4- N、NO- 2 -N和NO- 3- N)向上覆水体中扩散，并且也加快了沉积物中氮的氨化作用和硝化作用速率，而河蚬则主要通过生理活动机制影响潮滩生态系统内氮素的迁移转化过程。

Results showed that using nitrogen increased nitrogen cumulate, grain yield, protein content, and grain protein yield.

结果表明，施用氮肥提高了小麦植株的氮素积累量、子粒产量、蛋白质含量和蛋白质产量。

Results On postoperative day 10, the cumulative nitrogen balance and the level of plasma fibronectin was significantly higher in rhGH group than in the placebo group (P 0.05). Furthermore, on 4 d and from 6 d to 9 d after operation, daily nitrogen balance was higher in rhGH group than in control group(P 0.05). Mean blood glucose levels were significantly higher in the rhGH group from 3 d to 6 d after operation (P.05). But hyperglycemia could be well controlled by insulin treatment.

结果 术后第10 d，rhGH组累积氮平衡和血浆纤维连接蛋白水平优于对照组（p＜0.05）；术后第4 d和6～9 d，rhGH组每日氮平衡均优于对照组（p＜0.05）；rhGH组治疗期间血糖水平升高，但程度较轻，可为胰岛素有效控制，未观察到严重并发症发生。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。