nitrogen concentration的例句大全

Effects of Phosphate-solubilizing Bacteria on the Vegetation Biomass, Nitrogen and Phosphorus Concentration of Avena sativa

溶磷菌对燕麦生物量及植株氮、磷含量的影响

From the investigations, lack of nitrogen and phosphorus, oxygen deficiency in aeration basin of SBR, high concentration of sulfide in the wastewater is found.

调查分析得知该厂印染废水存在氮、磷缺乏现象，SBR曝气池存在缺氧现象，废水中硫化物含量较高。

There were no significant difference on pH value, concentration of total nitrogen, ammonic nitrogen, urea nitrogen and protein nitrogen in rumen fluid of sheep among the treatments ( P> 0.05).

全饲粮颗粒料中添加YC，对绵羊瘤胃液pH值、瘤胃液总氮、氨态氨、尿素氮和蛋白氮的浓度均无显著影响（P＞0.05）。

The orthogonal tests showed: the effectiveness of the factors on COD removal and ammonic nitrogen removal are characterized as follows: hydraulic load> the ratio of gas and water> the concentration of organic matter.

正交试验的结果表明：各因素对COD去除效果和氨氮去除效果的影响大小依次为：水力负荷>气水比>进水浓度。

During start process, only the initial 2 cycles produce relative high level nitrogen oxide ( NO) emission, and the NO concentration decreases with the rising of cranking speed.

起动过程中只有第12循环会产生较多的氮氧化物，整个起动过程氮氧化物都较低，氮氧化物浓度随拖动转速升高而降低。

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。

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。

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。

The results showed that ammonia nitrogen and sulfurated hydrogen had a notable toxic effect on the larvae of penaeus japonicus ( F> F_ 0.05), and the mortality rate of larvae increased significantly with the concentration.

实验结果表明：氨氮和硫化氢对日本对虾幼体的毒性作用显著（F>F0.05），随着浓度的增加，各期幼体的死亡率明显升高；

Field data from a typical waterworks demonstrated that the model could well predict the probability distribution of the concentration of permanganate index, ammonia nitrogen and four kinds of trihalomethanes ( THMs).

典型水厂的现场监测数据表明，该模型能够较好地模拟水厂中高锰酸盐指数、氨氮以及4种三卤甲烷的浓度概率分布。

Terramycin crystal mother solution contains high concentration of nitrogen as well as carbon.

土霉素结晶母液是一种含高硫高氮的高浓度难生物降解有机废水，采用前置反硝化法对其进行脱氮处理。

The effects of energy conditions, concentration of cells inoculated, nitrogen-nutrients and acid-washing pretreatment of coal on desulfurization of coal using the bacterium thiobacillus ferrooxidants were studied.

对能源条件、细菌接种量、氮素营养和酸预浸洗煤样等影响微生物煤脱硫的因素进行了研究。

It could be available to control the concentration of nitrogen and phosphorus and the hydraulic retention time for algae bloom preventing.

控制氮磷浓度和水力停留时间是预防水华发生的有效措施。

Nitrogen had a significant role in the improvement of corrosion resistance in stainless steel, and the best nitrogen content wais concerned to the type and concentration of corrosion medium.

实验研究结果表明：（1）氮对不锈钢耐腐蚀性能有显著的改善作用，耐蚀性能最佳的氮含量与腐蚀介质的类型和浓度有关。

Nitrogen application and CO2 concentration have the opposite effect. It also maintain chlorophyll fluorescence reaction center highly open, relieve Pn decrease in flag leaf. 3.

增施氮肥与CO2浓度有相反效应，通过提高N素营养可以维持ΦPSⅡ反应中心高度开放，缓解了CO2浓度带来的旗叶光合能力的下降。

Temporal-spatial Distribution Characteristics of Nitrogen Dioxide Concentration in Shanghai Ambient Air

上海市环境空气NO2浓度时空分布特征

Impacts of hedgerows on soybean are more than that of wheat, however, with increasing distance impacts of hedgerows on crops decrease and the differences of biomass, concentration, uptake of nitrogen between intercropping and sole cropping systems are not significant.

绿篱对相邻行大豆影响大于小麦，但随着距离的增加，间作系统各行作物生物量、含氮量和吸氮量与单作相比差异不显著。

Study on the Effects of the Concentration Ratio of Carbon and Nitrogen Source on Maize Sheath Blight

不同浓度碳、氮源对玉米纹枯病菌的影响

Investigated variables: nitrogen flow rate, copper ion concentration, and extraction temperature.

研究的因素包括：氮流速、铜离子浓度及萃取温度。

Development of Nitrogen Tetroxide Concentration Monitor

四氧化二氮毒气浓度监测仪的研制