查询词典 nitrogen

While nitrogen application had little influence on Albumin and Globulin content, and the effect of nitrogen application on Glutelin content of grain varied with the selected corn varieties.

表明适量增施氮肥有利于籽粒氨基酸总量的提高及品质的改善。磷、钾营养对高油玉米吉油一号氨基酸品质有改善作用，但其对本研究中其它品种玉米氨基酸品质及其对各品种玉米氨基酸总量的影响还有待于进一步研究。4。

The effects of nitrogen, phosphorus, nitrogen and phosphorus ratio and silicon on growth of alga Chaetoceros gracilis was conducted through the monoculture.

通过对纤细角毛藻的单种培养，研究了N、P、N/P和Si对其种群增长的影响。

The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.And then, the author put fertile soil, which included micro-algae, proportionally into sterile samples and cultivated them respectively under illumination condition (micro-algae can live and reproduce)and dark condition(micro-algae will die in some time).The above indices were measured in 0, 30, 60 and 90days respectively, The analyse of the interrelation between the change of micro-algae"s number and the changes of soil pH value, soil organic matter, soil available phosphorus and soil nitrogen indicated:Soil micro-algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro-algae.Under dark condition,the micro-algae"s number declined gradually and went to zero in the end,while under illumination condition ,on the 90th day, the micro-algaes number of per gramme was 6-7 times more than that of the beginning.

本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究，然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中，分别在光照条件和黑暗条件下进行培养，在0天、30天、60天和90天分别检测以上指标，比较有光条件和无光条件下，即有藻条件和无藻条件下贫瘠土样所发生的变化，并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析，以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。

As a resultant of Nitrite nitrogen(NO2——N),nitrite-NH2 has been listed into the list of carcinogens with its hazardousness to the health of human being and livestock.in this paper based on ISO/TS 14256-1 method,a series of measuring method of nitrite nitrogen in soil was set up,with the merits of rational relativity in calibrated curvilinear equ...

它是一种公认的致癌性污染物，亚硝酸盐可形成致癌物亚硝胺，危害人畜的生命健康。该研究在ISO/TS 14256-1方法基础上，建立了一套系统的土壤质量亚硝酸盐氮测定方法。方法适用于土壤中亚硝酸盐氮含量的测定，方法操作可靠。校准曲线方程具有良好的相关性，方法检出限较低，灵敏性好。

It is the intense heat of lightning that forces the nitrogen to combine with oxygen in the air, forming nitrogen oxides that are soluble in water and fall to the earth in rain as dilute nitric acid.

闪电的高温是氮和空气中的氧化合成能溶于水的氧化氮，随雨水进入土地，稀释成硝酸。

To solve the problem of high-concentration nitrogen and phosphorus in secondary effluent, nature zeolite was modified and compounded to remove nitrogen and phosphorus by using adsorption process.

针对二级出水中氮、磷含量较高问题，对采用吸附法去除水中的氮、磷的天然吸附剂进行了改性和复合处理实验。

The results showed that the positive rates of RNA integrity in grind with liquid nitrogen group and in homogenizer without liquid nitrogen group were 68.42% and 29.79% respectively, and there was significant difference between these two groups; however, there was no statistic difference in positive rate of RNA integrity, OD260/OD280 ratio and 3-actin gene expression level between the drug-induced labor group and non-drug induced labor group.

结果发现，液氮研磨组分离完整RNA的阳性率高於匀浆器处理组，分别为68.42%和29.29%，两组比较有显著性差异；药物引产组及非药物引产组在分离完整RNA阳性率、胚胎组织RNA的OD260/OD280比值和胚胎组织β-actin基因表达量上均无统计学差异。

To investigate the method of RNA isolation from human embryonic tissues and the factors influencing the quality of RNA, the RNA from human embryonic tissues obtained with drug-induced labor or non-drug induced labor were isolated by using grind with liquid nitrogen or homogenizer without liquid nitrogen.

为探讨人类胚胎组织完整RNA的分离方法及其影响因素，采用液氮研磨及匀浆器两种制备组织匀浆方法，对不同引产方式的人类胚胎组织进行总RNA分离，并对RNA质量进行鉴定。

In alltreatments, the removal of nitrogen and the accumulation in vivo of nitrogen in Eichharniacrassipes are greater than Hosta ventricosa.

在各处理中凤眼莲对氮的去除率以及体内氮的累积量都要大于紫萼玉簪。

Both of Eichharnia crassipes and Hosta ventricosa can grow normally in a single nitrogenand phosphorus stress condition, The higher the concentration of nitrogen and phosphorus in waterthe higher the chlorophyll content and dry matter content in plants, it means the growth of plants isgood, This proves that Eichhamia crassipes and Hosta ventricosa has a very strong ability to adaptin a single nitrogen and phosphorus pollution water, they can be used for repairing a singlenitrogen and phosphorus pollution water.

在单氮和单磷胁迫条件下植物都能够正常生长，并且水体中氮、磷浓度越高凤眼莲和紫萼玉簪体内的叶绿素含量及干物质含量就越高，说明两种植物的生长状况就越好，这一点证明两种植物对氮、磷污染的适应能力都很强，可以用于修复单氮和单磷污染水体。

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。