大气中的氮被转变成含氮物质。
The conversion of atmospheric nitrogen into nitrogenous substances.
本试验以香菇为原料，对微波法提取香菇含氮物质的工艺进行了研究。
The nitrogenous substances-extracting technology by microwave from Lentinus edodes was studied.
人类使河川释放出一氧化二氮增加，而研究结论指出，透过减少使用农业肥料和其他含氮物质，可以改善这种情况。
Reducing use of agricultural fertilizer and other sources of nitrogen are examples of how to decrease humanity’s contribution to the growth of nitrous oxide produced in waterways, the study concluded.
人类使河川释放出一氧化二氮增加，而研究结论指出，透过减少使用农业肥料和其他含氮物质，可以改善这种情况。
Reducing use of agricultural fertilizer and other sources of nitrogen are examples of how to decrease humanity's contribution to the growth of nitrous oxide produced in waterways, the study concluded.
瘤胃原虫是瘤胃微生物的重要组成部分，它们直接影响饲料中碳水化合物、含氮物质、矿物质和维生素的消化和利用。
The ruminal protozoal is the important component of the ruminal microorganism. They influence the digestion and utilization of carbohydrate, nitrogenous material, mineral and vitamin in feed directly.
该文主要介绍了其水分、碳水化合物、含氮物质、糖苷类、色素物质、矿物质、各种酶等的变化，并提出了创造适宜条件，腌制高质量的产品。
Changes of moisture, carbohydrates, nitrogen compounds, glycoside pigments, minerals, and enzymes are introduced in this paper. The suitable condition is set to produce high quality product.
因此在采用乳粉为原料生产酸奶时，不仅要考虑到全乳固体含量超过11．3％以上，而且要充分考虑到乳粉中乳糖、乳脂及全乳固体含氮物质中酪蛋白的含量，以确保生产出优质酸奶。
Contents of milk sugar, butter fat and casein should also be taken into consideration and the concentration of dry matter in milk should be over 11 3% to produce quality yoghurt.
这些较小的生物体也被从陆地流入的含氮和磷的营养物质所刺激。
These smaller organisms are also stimulated by nitrogen and phosphorous nutrients running off the land.
三聚氰胺是一种有机质的化学物质，最常见于含氮丰富的白色晶体。
Melamine is an organic base chemical most commonly found in the form of white crystals rich in nitrogen
介绍一套含氮铸铁光谱分析标准物质的研制过程。
The developing process of a suit of certified reference materials of nitrogen cast iron for spectrum analysis was introduced.
结果表明，在测试条件下，生物质气化产物中含氮组分浓度主要取决于气化温度，而当量比的影响相对较弱一些。
The results showed that, comparing with the equivalence ratio, the gasification temperature has a more obvious influence on the nitrogenous species concentrations.
三聚氰胺，是一种含氮量非常高的物质，常被用于制造塑料和化肥。专家说一定含量的该物质会在食品加工处理的过程中从环境转移到食物中。
Melamine, which is high in nitrogen, is used to make plastics and fertilizers and experts say some amount of the chemical can be transferred from the environment during food processing.
三聚氰胺，是一种含氮量非常高的物质，常被用于制造塑料和化肥。专家说一定含量的该物质会在食品加工处理的过程中从环境转移到食物中。
Melamine, which is high in nitrogen, is used to make plastics and fertilizers and experts say some amount of the chemical can be transferred from the environment during food processing.
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