查询词典 nitrogen

In the main response to the region in accordance with the "aeration, idle, precipitation, drainage" cycle of operation procedures, so that sewage in the "aerobic - hypoxia," repeatedly in the carbon to complete, from Nitrogen, and the "aerobic - anaerobic" repeatedly in the completion of phosphorus.

在主反应区内依照"曝气、闲置、沉淀、排水"程序周期运行，使污水在"好氧-缺氧"的反复中完成去碳、脱氮，和在"好氧-厌氧"的反复中完成除磷。

So the variety of L21 andLainong9217 should be planted in dry land of high yield,and the variety ofLainong8834 and YD27 in dry land of middle yield,and gaining high yieldand high efficiency.2 The researches on the flag leaf and root system senescence after anthesisand yield were studied in dry land wheat of high yield,the activity of super-oxide dismatase and catalase、and the soluble protein content、Cytokinincontent in wheat flag leaf and root system after anthesisand Cytokinincontent in grain decreased slowly,and the content ofmalondiadehydeand the Abscisic Acidcontent in wheat flagleaf and root system and the Abscisic Acidcontent in grain increasedslowly,meanwhile keep higher root vigor and the root vigor decreased slow-ly,the result would be benefit to delay the senescence and gain high yield.3 The effects of soil thickness on the senescence of flag leaf and root sys-tem、nitrogen distribution and utilization and water consumption law andyield in dry land wheat had been studied in soil column and field.

通过大田条件下旱地高产小麦耗水规律及产量变化的研究表明，4个品种耗水量、产量、水分生产率、籽粒产量中来自花后光合器官输送的比例及综合效益评判结果均以鲁麦21和莱农9217为高，而莱农8834和烟D27则与此相反，因而在旱地高产麦田应以种植鲁麦21和莱农9217为主，中产麦田以莱农8834和烟D27为主，以获得高产高效。2在旱地高产大田对鲁麦21与烟D27两品种花后旗叶、根系衰老及产量变化进行了研究，认为花后旗叶与根系SOD、CAT活性、可溶性蛋白质含量、i-PAs含量及籽粒iPAs含量降低缓慢，MDA含量、ABA含量及籽粒ABA含量增加缓慢，同时保持较高的根系活力且下降缓慢，有利于延缓衰老，形成高产。3土层厚度对旱地小麦花后衰老、氮素分配利用及产量的影响进行了研究，随土层厚度加深，根系活力、根系与旗叶SOD、CAT活性及可溶性蛋白质含量增加，MDA含量减少，土层愈薄，其根系与旗叶衰老愈快。

One-time fertilization at present rate did not have effects on nitrogen nutrient in water nor duckweed productivity.

以目前剂量施肥一次对水中氮类营养及浮萍生产力并无效应。

MASNMI Y%KANA A%SENZO U Carbon and nitrogen stable isotope ratios of the tissues and gut contents of a dugong from the temperate coast of Japan Mammal Study , 2004,null

蔡德陵%李红燕%唐启升%孙耀黄东海生态系统食物网连续营养谱的建立：来自碳氮稳定同位素方法的结果中国科学C辑， 2005，2

BW- 20 water oils dual purpose heavy nitrogen sensitization glue fitting be used for PCB, Advertisement scutcheon, China turns printing paper, Net point, Advertisement and high accurate silk printing duotone.

BW-20水油两用重氮感光胶适用于PCB、广告标牌、陶瓷转印纸、网点、广告及高精密丝印网版。

Earthworm had no effect on soil microbial biomass carbon and nitrogen in the three tropical forests.

5蚯蚓对三林地土壤微生物生物量碳、氮库的大小没有显著的影响。

The key point is that the Gulf of Eilat is an oligotrophic sea, a sea that does not have nitrogen at all,Loya explained.

洛亚解释道："关键是埃拉特海湾是一片营养贫乏、完全不含氮的海域。"

Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. The mail simulation results were as follow:(1)The variations of drift velocity and the average energy of electron with the E/N in O2 and N2 are obtained. The number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the E/N and the energy of electron are analyzed emphatically.

考虑了各种弹性和非弹性碰撞过程，在纯氧气、纯氮气中，给出了不同简化场E／N条件下的电子漂移速度和平均电子能量的变化；着重分析了激发、电离、分解及分解电离碰撞的粒子数随E／N、电子能量的变化，同时计算了激发发射光谱的波长。

Nitrogen spring pressure as long as you master the use of pressure gauges, long-term use of elastic constant, life expectancy five million times.

氮气弹簧只要用压力表掌握压力即可，长期使用弹力不变，寿命500万次。

At the same time, electron cloud density of the nitrogen atom may be taken as the key factor to be correlation with the biodegradation property.

同时还提出了用捕收剂分子中N原子上的电子云密度可作为衡量捕收剂生物降解性的重要参数。

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