查询词典 nitrogen

In 1975 Dbereiner experimentally found the associative symbiotic nitrogen-fixation bacteria associated with graminaceous plant and put forward the concept of rhizosphere associated NF.

1975年，Dbereiner实验发现与禾本科植物联合共生的固氮菌并提出根际联合固氮的概念。

It has been 40 years since Dobereiner and Ruschel isolated the nitrogen-fixing bacteria from the rhizosphere of sugarcance plants and demonstrated the potential of diazotrophs to associate with graminaceous plants.

本研究分离、筛选得到一株固氮酶活性高且稳定，生长势强的联合固氮菌株，并对其分类地位、形态及生理特征、对环境的适应性及其对植物的促生效果和作用机理作了系统研究，得结果如下。

He used liquid manure teas to flood his fields and clover as a green manure to fix nitrogen.

他用液体肥茶洪水他的领域和三叶草作为绿肥，以固氮。

The nitrogen availability index of green manure has been discussed.

多元回归与相关的分析结果指出，提高绿肥N有效度要求高氮又高碳和低C∶N比；4。

Effection of Nitrogen Oxide and Vascular Endothelial Growth Factor on Placental Function and Fetus Growth..

一氧化氮和血管内皮生长因子对胎盘功能及胎儿生长发育的调控。

Objective To observe the effects of recombinant human growth hormone on postoperative nitrogen balance.

目的 了解重组人生长激素对手术后病人氮平衡的影响。

Road transport produces most of both types of gunk: 83% of the fine particles and 46% of the nitrogen pollution.

这两种黏性物质主要由公路交通产生：83%的细颗粒物以及46%的氮氧化物污染。

And the purpose of nutritional support is to keep nitrogen balance, strengthen the cellular metabolism, improve tissue functions and speed up habilitation of cerebral patients.

营养支持的目的是维持氮平衡、维护细胞代谢、改善组织器官功能，促进脑血管病人的康复。

The inhibition kinetics of ammonia oxidation for ammonium-nitrogen or FA could be described by the Haldane inhibition equation.

Haldane抑制动力学方程可以较好地描述氨氧化的铵氮或自由氨基质抑制动力学过程。

With the filling nitrogen of 0.9 MPa, the maximal pressure ratio reaches 1.21 and the operation frequency is 25 Hz. The ratio of the harmonic wave of the engine was very little and the frequency jumping was not found in present experiments.

在充气压力为0.9MPa的条件下，该热声发动机最大压比可达1.21，远高于驻波型热声发动机，实验结果和理论分析均表明系统的工作频率为25Hz左右，实验装置的谐波比例非常小，且也没发现频率跳变等现象。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。