查询词典 nitrogen

Biological nitrogen fixation, which provides all the plants on the globe with 75% of fixed nitrogen, is one of the important projects in life science.

生物固氮为全球的植物提供75%的氮素，是生命科学中的重大课题。

The soil nitrogen status is a function of the processes of nitrogen fixation , microbial decomposition, nitrification and denitrification

土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。

In nitrogen-fixing populations this 'new' nitrate and nitrite can be derived from the assimilation of nitrogen gas.

这些自己"堆肥"的豆科植物还能在其根瘤中的共生细菌的帮助下固定大气中的氮，从而将氮循环的主要步骤综合在一种生物中。

An enzyme of nitrogen-fixing bacteria that activates the conversion of nitrogen to ammonia .

组胺酶一种消化系统中的酶，能减弱组胺的活性

Nitrogen-fixing activity of nodulating soybean could be inhibited by fertilizer nitrogen applied.

在本试验中，施用氮肥抑制了结瘤大豆的固氮活性。

Breeding of nitrogen-fixing bacteria is the basis for nitrogen-fixing microbial fertilization.

固氮微生物菌种选育是固氮微生物肥料生产应用的基础。

Nitrogen is often used instead of air because nitrogen is noncorrosive.

通常，气压设备中使用的是氮气而不是空气，因为氮气没有腐蚀性。

The calculated results show that there is an obvious difference between the interfacial tension of the bulk liquid nitrogen and that of the adsorbed liquid nitrogen film on most of nonporous so.

根据表面热力学原理，本文导出从无孔固体吸附氮气的等温线计算其表面上吸附生成的液氮膜界面张力方程式；还导出计算固体中圆筒形间隙孔径方程式。

Grandis×E. urophylla. The results also showed that the chlorophyll content of leaves in eucalyptus seedlings increased with the concentration of nitrogen, but it showed a decreasing tendency in overhigh nitrogen concentration.

桉树叶片的叶绿素含量随着氮素处理浓度的升高而升高；但是过高的氮素处理，叶绿素含量则出现下降的趋势。

Other compounds include the nitrides, exceptionally hard materials made from nitrogen and a metal; cyanides; azides, used in detonators and percussion cap s; and thousands of organic compounds containing nitrogen in functional groups or in a linear or ring structure.

其它的化合物包括氮化物，是由氮和金属生成的异常坚硬的材料；氰化物；叠氮化物，用作引爆剂和雷管；还有数千种含氮的有机化合物，以功能团或者线性或环状结构的形式存在。

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。