查询词典 nitrogen

HPLC method of determination of CCU has been developed for the kinetic study. The kinetics of photodecomposition of CCU in various carrier gases have been studied. The photoreaction of CCU in nitrogen and air is of the first order, while in oxygen is closer to that of the second order. The rate constants in nitrogen, air and oxygen are 0.00703/h, 0.0109/hand 0.00445 , and the half-livies are 98. 6, 63. 6 and 62. 7hour respectively.

采用以甲醇一水为流动相的反相HPLC作为分析手段，对灭幼脲在不同载气中的光解动力学作了研究，结果表明，灭幼脲在氮气和空气中的光解反应符合一级动力学形式，而在氧气中的光解则更接近于二级反应形式；在三种气氛中的反应速度常数分别为0.00703h〓，0.00109h〓和0.00445h〓〓，半衰期相应为98.6、63.6及62.7h。

In the whole growth period, the genotype of high nitrogen use efficiency had low photorespiratory rate and the ratio of photorespiration to photosynthesis, while low nitrogen use efficiency had high photorespiratory rate and the ratio of photorespiration to photosynthesis.

从整个生育期看，氮利用效率高的水稻光呼吸速率较低，其相对光呼吸较小；氮利用效率低的水稻光呼吸速率较高，其相对光呼吸较大。

Effects of tillage systems and nitrogen applied amount on wheat growth and development and yield of wheat and maize 3.1 Effects of tillage systems and nitrogen applied amount on wheat growth and development In the second year of experiment, there was no significant difference in the wheat flag leaf photosynthesis rate, flag leaf senescence characteristics, photosynthate transferring amount, photosynthate transferring ratio and dry matter accumulation of between R, H and C.

3耕作模式与施氮量对小麦、玉米生长发育及产量的影响 3.1耕作模式与施氮量对小麦生长发育的影响在试验第二年，旋耕和耙耕模式在旗叶光合速率、旗叶衰老特性和光合产物转移量和转移率，以及干物质积累量上与常规耕作模式无显著差异。

The little taste of soy depends on the discretion of content of nitrogen of amino acid phthalein, generally speaking nitrogen of amino acid phthalein is taller, the order and degree of soy is higher, that is to say quality is better.

酱油的鲜味取决于氨基酸酞氮含量的高低，一般来说氨基酸酞氮越高，酱油的等级就越高，也就是说品质越好。

Besides, the traditional Steam Pressurizer was used widely in the world nowadays, there are so few papers about the Nitrogen Pressurizer. In this paper the mathematical model and dynamic characteristics simulation of the Nitrogen Pressurizer have been built to create a good environment for Integrated reactor research .

由于国内外以往较多采用的是蒸汽式稳压器，有关氮气稳压器的文章较少见，本论文中所研究的氮气稳压器的数学模型和动态特性仿真，为今后一体化反应堆的研究奠定了良好的基础。

Nitrogen is mainly present in organic forms in soils even though most plants absorb inorganic nitrogen, which accounts proximately 1% of total N in soils.

土壤氮库中的氮主要以有机氮的形式存在，无机氮仅占土壤总氮的1%，而植物所吸收的氮几乎都是无机形式。

The result showed that Ref1 was a psychrophile, and the best growing conditions were pH 6, 20℃ and yeast extract as nitrogen source while the best xylanase producing conditions were pH 3－7, 15℃ and yeast extract as nitrogen source.

结果表明：该菌为低温型菌株，其最佳生长条件为pH6、20℃和酵母膏作为氮源；最佳产酶条件为pH3－7、15℃及以酵母膏氮源；条件优化后产酶可达118.7U/mL，可溶蛋白含量可达到60？

It suggests that the iodine atom is quasi linear with nitrogen and Mo, which is bonded to the nitrogen atom, could generate a large static electronic field and give the large contribution to NLO response.

表明碘原子与氮原子和钼原子趋于直线时，会产生较大的静电场，从而产生较大的非线性光学响应。

The results showed that the main rice yield on nitrogen applied, planting density, reciprocity nitrogen applied and planting density was best remarkable and the ratoon rice yield was not remarkable.

结果表明：头季施氮量、栽培密度、施氮量与栽培密度互作对头季稻产量差异极显著，但对再生季产量差异不显著。

The total volatile basic nitrogen and free fatty acids of razor clam increased with the rise of temperature during storage at ambient temperature,+5#, and -18#, with the slowest speed at -18#, the fastest at ambient temperature The extractable protein nitrogen change was opposite to the change of TVB-N and FFA, the EPN of razor clam decreased with the rise of temperature during storage at ambient temperature,+5癈, and -18#, with the slowest speed at -18#, the fastest at ambient temperature.

缢蛏在室温、+5℃冷藏和-18℃冻藏条件下，其总挥发性盐基氮和游离脂肪酸含量在一定的测定时间范围内，随着贮藏温度的升高均呈增加趋势，但增加的速度相差较大，-18℃冻藏条件下增加最慢，+5℃冷藏次之，室温增加最快。

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