对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。
So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.
食物生产的高碳排放来自于畜牧业以及大量使用的化肥，其中有些分解成一氧化二氮，而一氧化二氮对全球变暖的危害性比二氧化碳的要高出数百倍。
The high emissions come from livestock farming and from the heavy use of fertilisers, some of which break down into nitrous oxide, a global warming gas hundreds of times more powerful than CO2.
土壤中的氮素主要以有机氮的形式存在于土壤有机质中， 土壤碳氮比与有机质含量显著相关。
The N in the SOM existed mainly in the form of organic nitrogen, and the soil C:N was significantly correlated with SOM.
我们知道电离能会随着周期表，向右而逐渐变大，因此碳的电离能比旁边的氮要低一些，那么就像我说的。
We know that ionization energy is going to increase as we go across the periodic table, so that means carbon has a lower ionization energy than nitrogen which is right next to us.
本文论述了甲醇、蔗糖、报纸等不同物质作为碳源及其碳氮比对反硝化过程的影响，并对各碳源适宜的碳氮比加以总结。
The objective of this paper is to introduce the influence of different carbon source, such as methanol, sucrose, glucose and newspaper etc and the effect of C/N ratio on denitrification, .
碳氮比随海拔升高而升高，在土壤剖面中的分布随植被类型不同而有所差异。
The soil C:N increased with the increase of the elevation, but its vertical distribution in the soil profile varied with different vegetation types.
用包含水解酸化、硝化和反硝化三个反应器的组合式生物脱氮除碳系统处理尼龙6废水，着重分析了该系统的回流比，溶解氧。
A combined system consisting of hydrolysis acidification, denitrification and nitrification reactors was used to removal carbon and nitrogen from the nylon-6 production wastewater.
结果表明：最适宜的碳源是葡萄糖，最适宜的氮源是蛋白胨、麦麸、牛肉膏，最适宜的碳氮比是40：1。
The best carbon source is glucose, and the best nitrogen sources are peptone, beef extract paste and wheat bran. The most favorable ratio of C/N is 40: 1.
其中M _(337)在不同碳、氮源以及不同碳氮比的培养基上均表现出上述类似的变异特征。
They are equal to appear a similar variation characteristic which is above-mentioned, at different carbon source and nitrogen source or different proportion of carbon-nitrogen culture for M_ (337).
利用冠层反射光谱监测叶片碳氮比的适宜时期为孕穗期至吐丝期。
The proper time for monitoring leaf soluble sugar to nitrogen ratio should be from booting to silking stage.
叶片碳氮比无损监测对于玉米生长诊断和管理调控提供具有重要的理论意义和应用价值。
Non-destructive monitoring of leaf soluble sugar to nitrogen ratio based on spectral information would be important is necessary for growth diagnosis and cultural regulation in maize production .
经不同年际独立试验数据的检验，叶片碳氮比监测模型的预测精确R2为0.6824，根均方差（RMSE）为0.4052。
Testing of the monitoring models with independent dataset indicated that the predictive precision (R2 ) was 0.6824, and RMSE was 0.4052.
结果表明，夏玉米叶片碳氮比随施氮量的增加而降低，随生育进程呈“高-低-高”动态变化趋势。
The results showed that the soluble sugar to nitrogen ratio in maize leaves decreased with increasing nitrogen rates, taking on the trends of high-low-high pattern with growth stages.
结果表明，夏玉米叶片碳氮比随施氮量的增加而降低，随生育进程呈“高-低-高”动态变化趋势。
The results showed that the soluble sugar to nitrogen ratio in maize leaves decreased with increasing nitrogen rates, taking on the trends of high-low-high pattern with growth stages.
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