nitrogen的例句大全

The result suggested that the inorganic dissolved nitrogen and phosphorus were the main nutrient factors that influenced the growth of the alga cultured in shrimp culture filtrate.

这表明，对虾养殖水中影响细基江蓠繁枝变种生长的主要营养盐形式是可溶性无机氮、磷。

The dry rice pot experiment shows that the coated fertilizer of PG, PGg and PGf can improve the nitrogen use efficiency respectively 1.5%, 7.5% and 4.7% compared with the common compound fertilizer.

旱稻盆栽试验结果表明，PG、PGg、PGf三种包膜肥料分别比未包膜肥料的氮素利用率提高了1.5%、7.5%、4.7%。

Alkaline potassium persulfate Digestion Determination of total Nitrogen in Municipal sludge

碱性过硫酸钾消解测定城市污泥中总氮

With the increasing rate of nitrogen application, the yield of dry matter and digestible nutrient increased;

随着追施氮量的增加，干物质产量和可消化干物质产量增加，以总施氮量300KgN／hm~2的肥料报酬最高；

Biological effect of low energy nitrogen ion implantation on E.Coli

低能氮离子注入大肠杆菌诱发的生物学效应研究

Adding inorganic nitrogen source such as NH4Cl 、( NH4) 2SO4 to culture medium, increase glucose concentration and Carbon Catabolite Repression and have no benefit to riboflavin production.

NH4Cl、（NH4）2SO4等无机氮源用作2.5%酵母粉的补充氮源，都能够促进发酵液中葡萄糖浓度增高，引起碳分解代谢阻遏效应，不利于核黄素合成。

The biosynthesis of spiramycin ( SPM) by streptomyces spiramyceticus sp.799 was regulated by carbon and nitrogen catabolite repression as well as end products feedback repression.

本文采用强烈因子处理的诱变方法，配合理性化筛选技术，有意识地消除一些分解代谢物的阻遏和产物对螺旋霉素生物合成的反馈抑制。

Main influencing factors in the research on catalytic conversion of coal-nitrogen

煤氮催化转化研究中的主要影响因素分析

The contents of total nitrogen, total phosphorus, content of exchangeable cation ( CEC) and C/ N specific ratio were all improved.

施用有机肥的土壤全氮、全磷、重组磷及C/N比均呈提高趋势，pH值降低，其原土和重组复合体的阳离子交换量较高。

The signal of a nitrogen-centered radical adduct of DMPO was observed. The results obtained indicate that the trapped radical is a cation radical of diamine produced from diamine and photogenerated hole.

观察到DMPO与氮中心自由基加合物的ESR信号，表明捕捉到的自由基是脂二胺与光生空穴作用而产生的胺的阳离子自由基。

In order to improve the transfer efficiency, CCD shift register is designed with buried channel CCD. Reducing the impurity concentration in the buried channel is found to be an effective method of improving the transfer efficiency at the liquid nitrogen operating temperature ( 77K).

为了提高转移效率，CCD移位寄存器采用埋沟CCD，并且发现，降低埋沟中的杂质浓度是提高器件在77K液氮工作温度下的转移效率的一种有效方法。

Moreover, acid rain inhibited microbial respiration, cellulose decomposition, ammonia-oxidation, and nitrogen-fixation with different degrees.

酸雨对土壤微生物的呼吸强度、纤维素分解强度、氨化作用、固氮作用、硝化作用等都存在不同程度的抑制作用。

SBR process can remove organism, on the meanwhile, it has well function of nitrogen and phosphorus removal.

SBR法在去除有机物的同时，具有良好的脱氮除磷功能。

Structure, select of material, making and check of nitrogen wash column that is key equipment in cool box is described.

介绍了冷箱中的关键设备氮洗塔设计、结构、材料选择、制造与检验。

The plants keep the nitrogen in their roots , legum.

植物将氮气保存在他们的根部.

Formaldehyde and distillation are the nitrogen determination methods in the sample.

甲醛法与蒸馏法是测定样品中氮含量的方法.

It is summarized that the seedling's tolerance of half lethal salt concentration, the seed vigour index, and the seed nitrogen content could be regarded as the physiological index for assessing the level of the seed salt tolerance and whether it be selected for breeding.

初步认为种子耐盐半致死浓度、种子活力指数和含氮量可以作为种子耐盐性评价和选育的生理指标。

Nitrogen fertilizer to achieve a single change in fertilizer products achieve serialization.

实现单一氮肥向复合肥的转变,实现化肥产品系列化.

In aerobic pond, organic chemical and biological degradation by microorganisms and continues to decline, organic nitrogen was ammoniated then be nitrification.

在好氧池中，有机物被微生物生化降解而继续下降，有机氮被氨化继而被硝化。

The Treatment of Lung Hydatid Cyst Using Liquid Nitrogen Freezing Method ( Enclosed 4 Cases)

液氮冷冻治疗肺包虫囊肿（附4例报告）