查询词典 nitrogen cycle

It has been proved that azotobacter CN-2 has a higher activity of nitrogen fixation in pure slant culture. Inoculated to wheat seen, the azotobacter can live in the rhizosphere, which has a higher activity of nitrogen fixation and improves nitrogen supplement to plant. Weight and nitrogen content of dry wheat seeding have been increased.

证实固氮菌CN-2具有较高的斜面纯培养物固氮活性，小麦播种时接种固氮菌，可以定殖在小麦苗根际并有较高的固氮活性，能显著改善小麦氮素供应，使苗干重、苗含氮量比对照均有较大幅度的提高。

Genetic diversity of carbon-nitrogen cycle was relative to soil organic matters,total nitrogen,carbon-nitrogen ratio,available phosphor and water content with different degrees.

碳氮循环基因多样性与土壤有机质、全氮、碳氮比、速效磷和土壤含水量等生态因子有不同程度的相关。

Nitrification is one of the most important step is the nitrogen cycle, this series of reactions are responsible for chemoautotrophic nitrobacteria, therefore the chemoautotrophic nitrobacteria play an important role in nitrogen cycle.

摘要 硝化作用为整个氮循环的必须步骤之一，这一连串的反应主要由自营性的硝化菌负责，因此，自营性硝化菌在氮循环中扮演著关键的角色。

The Ed1 sequence develops ascending and falling cycle in this area; the Ed2 sequence mainly develop the falling cycle; and Ed3 sequence develops ascending and falling cycle; the Ed4 sequence mainly develop the ascending cycle.

其中，Ed1层序在全区呈对称分布；Ed2层序主要发育下降半旋回；Ed3层序旋回对称明显，全区均有分布；Ed4层序在研究区内主要发育上升半旋回。

The remainder of the smoothed monthly sunspot numbers of cycle 23 is given by using the method, and a comparision of this mthod with the similar cycle method is given as well.A basis for the determination of minimum time of a solar cycle and a basis for the determination of maximum time of a solar cycle are given.

利用已知的22个完整太阳活动周平滑月平均黑子数的记录，给出了对正在进行的太阳活动周发展趋势进行预测的方法，并应用于第23周，同时与其它相似周方法给出的预测结果进行了比较。

It was found that the low cycle fatigue character has close internal relations with the high cycle fatigue character. In the research of high cycle fatigue of concrete, the test means of cyclic loading between the set constant of force or stress has been extensively used. But this kind of test means can't be used in studying the behavior of concrete low cycle fatigue under large strain.

在研究中发现低周疲劳特征与高周疲劳特征有着密切的内在联系，但高周疲劳问题研究中使用的是在设定的力或应力的上下界限之间重复受力的试验方法，这种方法已无法用于混凝土高应变低周疲劳性能的试验研究。

Then the overall performance of the cycle with different organic working fluids was analyzed individually. Compared with the conventional cycle configuration used for only recovering the exhaust heat, the present cycle has higher waste heat recovery efficiency. The overall efficiency of the cycle with cyclopentane and R113 is 20.83% and 16.51%, respectively.

与传统的只回收发动机排气余热的热力循环系统相比，文中提出的构型其余热回收效率更高，当采用环戊烷为ORC工质时，循环系统的整体效率为20.83%；当采用R113为ORC工质时，循环系统的整体效率为16.51%。

The tool cycle counter including a numerical display to indicate a cycle count, an actuator which is actuated by completion of a tool cycle, a counter assembly for recording a cycle count in response to actuation of the actuator, and being operably associated with the numerical display, and a substantially cylindrical outer housing encasing the counter assembly.

该工具循环计数器包括用来显示一循环计数的数字显示装置、通过工具循环的完成促动的致动器、用于相应于致动器的促动而记录下一循环计数并且与所述数字显示装置操作连接的计数器组件以及包围着所述计数器组件的基本上为圆柱形的外壳。

Water cycle is the bridge of cycle of the earth, biology and atmosphere. It also is the core issue of the global carbon cycle, water cycle and food fiber.

水循环是联系地圈-生物圈-大气圈的纽带，是全球碳循环、水循环和食物纤维中的核心问题之一。

A combined power cycle with LNG cold energy recovery consisting of Rankine cycle using ammonia-water as working fluid, power cycle of combustion gas, and LNG cycle, was presented.

提出了以氨水为工质的朗肯循环、燃气动力循环和液化天然气循环组成的混合动力循环系统，用于液化天然气冷能回收。

I will not give up and will not call you any more at the same time.

我不会放弃，同时我也不会在给你打电话了。

China is an uneven distribution of resources cross country.

摘要我国是一个资源分布不平横的国家。