查询词典 nitrogen

In addition, it was also found that, to some extent, the irrigation of Corbicula f1uminea had more or less influence on the nitrogen cycling in the Yangtze estuarine and tidal flat ecosystem.

软体动物河蚬主要通过生理活动影响近表层沉积物中氮素的迁移、转化。

As a consequence, it accelerated the processes of biogeochemical cycling of nutrient in the Yangtze estuarine and tidal flat sediments. Corbicula fluminea mainly inhabited near the surface tidal sediment. It affected the nitrogen cycling in the surface sediments by the physiological activities such as the excretion.

蟹类动物通过生物扰动改变了沉积物的物理结构，增加了沉积物与大气之间的接触面积，使沉积物氧含量大为增加，加快了沉积物中生源要素赋存形态之间的转化，因此蟹类活动促进了潮滩沉积物中生源要素的生物地球化学循环过程速率。

Corbicula fluminea however affected the exchange of nutrient nitrogen across the sediment-water interface by the physiologic mechanism such as the excretion. Crabs such as Ilyoplax deschampsin changed the physical structure of the tidal flat sediments by the strong bioturbation, and increased the content of dissolved oxygen in the sediment by enhancing the touched area of sediment and air.

谭氏泥蟹主要通过生物扰动，增加沉积物-水-气三相界面之间的接触面积，促进沉积物界面附近营养盐物质交换过程；而软体动物河蚬则主要通过生理活动，影响潮滩沉积物中氮营养盐的界面扩散过程。

The results show that the best carbon source and nitrogen source are corn flour and NH4Cl respectively.

结果表明：杏鲍菇菌丝生长的最佳碳源为玉米粉，最佳氮源为NH4Cl，最适无机盐为KH2PO4和MgSO47H2O。

Catalytic co-pyrolysis of corncob/LDPE mixture was performed in nitrogen and hydrogen atmospheres

低密度聚乙烯与玉米芯混合物在氮气氛围中共同热解时，在2：8的混合

The results of preliminary experiments showed that culture medium containing apple pomace and cottonseed meal (1︰1) as carbon and nitrogen sources supported xylanase production with maximal enzyme activity.

初步试验结果表明：以棉粕和苹果渣（1︰1）作为基础氮源和碳源得到的发酵曲的酶活值最高。

By collecting ,testing, comparing, and analyzing the soil samples, soil recovery under the various recovery conditions along Mian CountyNingqiang highway was studied. The results were as follows herbaceous recovery to the soil fertility recovery in the prior was greater than the combination of grass and irrigation or than the pure bushes recovery. In each of them, the content of organic matter were 13.84, 7.50, 6.00 g·kg-1; In the recovery of herbaceous ecology, to grow leguminous plant and granminaceous plant together was better than pure graninaceous plant or pure leguminous plant. In each of them, the content of organic matter was 29.67, 17.51, 9.37 g·kg-1; to sow ryegrass and alfalfa together with some local grass seeds or to grow coxcomb, alfalfa and local couch grass together could bring better effects than to plant the alfalfa only. In each of them the increased organic matter contents were 4.93,17.51 and 9.37 g·kg-1;the quotas of the organic matter and alkaline hydrolysis nitrogen in soil fetility factor were closely connected, mainly because of the difference between the generation quantity and resolution quantity of the organic matter in the soil surface.

采集土壤样品，经室内分析化验，用对比分析的方法对勉县至宁强高速公路生态恢复中不同恢复类型条件下的土壤恢复进行了研究，结果表明草本恢复类型对前期土壤肥力的恢复作用大于草灌结合，并大于单纯灌木恢复类型，其中有机质含量分别为13.84、7.50和6.00 g·kg-1；在草本生态恢复类型中，豆科植物与禾本科植物混播恢复类型大于禾本科植物恢复类型的作用，并大于单纯豆科植物恢复类型的作用，其中有机质含量分别为29.67、17.51和9.37 g·kg-1；黑麦草与苜蓿混播并有当地草种入侵以及小冠花与苜蓿混播并播入当地草种羊茅，明显优于纯苜蓿单播，其中有机质含量分别增加了4.93和3.32 g·kg-1；土壤肥力因子中有机质与碱解氮两个指标有较好的相关性，主要与土壤表层有机质的生成量和分解量之差有关。

Therefore, we studied two levels of biochemistry processing water leakage again in turn after the ozone tower, the ceramic filter the tower and the activated charcoal tower union depth processing craft again, this place principle craft its COD remove rate was 72.8%, anionic surfactant medicinal preparation remove rate was 90.9%, petroleum class remove rate was 78.8%, the total phosphorus and total nitrogen remove rate separately was 73.8% and 82.7%, the final water leakage might directly use in the city afforests, flushes the restroom, eliminates and washes the vehicle and so on, had the good environment, the society and the economic efficiency.

为此，我们又研究了二级生化处理出水再依次经过臭氧塔、陶滤塔与活性炭塔的联合深度处理工艺，该处理工艺其COD去除率为72.8%，阴离子表面活性剂去除率为90.9%，石油类的去除率为78.8%，总磷和总氮的去除率分别为73.8%和82.7%，最后出水可直接用于城市绿化、冲厕、扫除及洗车等，具有良好的环境、社会和经济效益。

Blood urea nitrogen and creatinine were determined on 1,3,5 days after CDDP treatment.

CDDP处理后，分别在第1、3和5天采血，测定血清尿素氮和肌酐。

Crepitus is different from the loud snap you hear when you crack a knuckle: That's caused by nitrogen bubbles inside the joints popping under pressure, says Raymond Rocco Monto, M.D., an orthopedic surgeon and spokesman for the American Academy of Orthopaedic Surgeons.

矫形外科医生，同时也是美国骨科医学院的发言人，雷蒙德·洛克·蒙托医学博士指出，捻发音和你猛按指关节时发出的脆响有所不同：后者是由关节中的氮气泡在压力下破裂造成的。

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