查询词典 nitrogen

The machine applies Faraday magnetic conductivity principle for the first time, utilizes the difference between oxygen of air andnitrogen, paramagnetism of oxygen and diamagnetism of nitrogen principles and adopted high-performance rare-earth permanent-magnet material, which creates 18 proprietary technologies that take polyoxier and helimagnetizer as core.

该机首次应用法拉弟导磁性原理，利用空气中氧、氮磁性之差，即氧的顺磁性和氮的抗磁性原理。采用高性能稀土永磁材料，创造了以"聚氧器"和"螺旋磁化器"为核心的16项专有技术。聚氧器利用氧的顺磁性，采用高梯度强磁场富聚空气中的氧，同时设有与离心叶轮同步高速旋转的双向扫射磁场，对富聚的氧予以充分的激活。

Better diaphaneity and DO, lower velocity of flow, with abundant aquatic biology were also found to be propitious to form complex biofilm, and to the enrichment of phosphorus and nitrogen in the biofilm.

较高的水体透明度、溶解氧水平，较低的水体流速，以及丰富的水生生物的存在有利于形成结构较复杂的生物膜，利于天然水体中生物膜对水体中氮磷的富集。

The effect of levels and forms of nitrogen applied on starch content, activity of SPS and diastase in tobacco leaves were also analyzed.

烟株生长进入成熟期后，叶片开始快速积累淀粉，接近成熟时达到最高；中部叶片淀粉含量HD为 4 0 %左右、K 32 6为 2 5 %左右。

Nitrogen ; Flue\|cured tobacco ; Starch ; SPS ; Diastase

氮； 烤烟；淀粉； SPS ；淀粉酶

A series of diazonium salts of 4-(N-methyl-N-phenylamino)-3-amino-1,8-naphthalic anhydride 5a, its naphthalimide derivative 5b, and 5e were designed and synthesized,and it was the first time to discover that aromatic radical-induced intramolecular aromatic 1, 5-hydrogen transfer was also involved in the nitrogen-contianed system during Pschorr cyclization.

实验设计合成了4--3-氨基-1，8-萘酐的重氮盐5a、其衍生物N-丁基-4--3-氨基-1，8-萘酰亚胺的重氮盐5b和N--4--3-氨基-1，8-萘酰亚胺的重氮盐5c，并首次发现了通过普朔尔环化反应以氮甲基化的氮为桥原子的体系存在着芳香自由基诱导的芳香1，5-氢转移。

An extremely dicey future on a brave new world of liquid nitrogen,tar,and smogbNew Yorker

主要的目的是要逃脱传统的音乐声响，进入一个崭新的音调实践的世界。

The results showed that, both diene and alkaline nitrogen-containing compounds had negative influence on the aromatization stability of the catalyst.

用小型固定床加压反应器研究了液化石油气（C4 LPG）中的丁烯在纳米ZSM-5型催化剂DLG-1上的低温芳构化反应，重点考察了原料中二烯烃和碱性氮杂质，以及反应温度、压力和C4 LPG进料重量空速条件对催化剂芳构化反应活性及稳定性的影响。

It is assumed that non-bound amino nitrogen is correlated with higher digestibility.

据认为未被结合的氨基氮与较高的消化率有关。

But apparent digestibility of the urea nitrogen is not much different, because it is easier to be decomposed.

消化道中以蛋白质形态存在的~(15)N标记氮比例以盲肠内容物最高，在正常食粪兔高达78.5％，这主要是盲肠微生物代谢的结果。

Under nitrate-limited conditions the growth of Skeletonema costatum increased significantly due to its small cell size and lower demand for nitrogen, while the two dinoflagellate with large cell size increased slowly and resulted very low cell yields.

属于甲藻的微小原甲藻和塔玛亚历山大藻与属于硅藻的中肋骨条藻相比，具有较低的营养盐亲合力和比生长速率。

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。