Another source of nitrogen pollution comes from fossil fuels, which produce nitrogen oxides when they are burnt.
另一种氮污染的来源为矿物燃料，矿物燃料燃烧时，会产生氮氧化物。
The product at the front is exhibiting a lack of growth compared with all the others. This was identified at the time as being the lack of nitrogen because a ‘wrong’ source had been used.
与其它相对，最前面的长得最矮小，这时候的它被认定是由于使用“错误肥料”而造成缺氮的表现。
The effects of inoculums, fermentation temperature and time, and nitrogen source on production of citric acid from aged paddy rice by liquid-state fermentation of Aspergillus niger were studied.
研究了接种量、发酵温度与时间、氮源等因素对以陈化稻米为原料，黑曲霉液态发酵法生产柠檬酸的影响，并优化了工艺。
The results of the experiments showed Peptone was the best nitrogen source in solid culturate, the second was yeast extract.
结果表明；在固体培养中，病菌对氮源的利用以蛋白胨为最好，其次为酵母膏。
The optimum nitrogen source is urea, next is peptone or yeast extract.
氮源中尿素最好，其次为蛋白胨和酵母膏；
Adding nitrogen source can promote its growth and degradation.
加入氮源能促进生长和苯酚降解。
The biomass of Chlorella vulgaris was increased without influence on its chlorophyll content when nitrate was used as nitrogen source.
在以硝酸盐为氮源时，谷氨酸可增加小球藻的生物量，对叶绿素含量无明显影响。
Result:The results showed that suitable nitrogen source rate can improve level of fermentation.
结果：试验表明，合适的氮源比例能够提高发酵水平。
The results showed that starch as carbon source, and casein and soybean powder as nitrogen source, o methoxyphenol and vanillin of suitable concentration had good influence on laccase production.
结果表明，淀粉作碳源、干酪素作氮源有利于漆酶的分泌，适宜浓度的愈创木酚和香兰素等对漆酶的产生有一定的作用；
The results indicate that the normal operation of reactor only needs the lower concentration of carbon source and nitrogen source to obtain perfect result.
结果表明，较低浓度的碳源和氮源即可维持反应器的正常运行，达到理想的脱色效果；
A new kind of nitrogenous product Bionitrogen was tested as a supplemented nitrogen source instead of the corn protein in penicillin fermentation.
生物氮素作为微生物发酵的一种新型氮源，我们首次在青霉素发酵生产上应用。
The production of erythromycin in the shake flask was significantly influenced by adding different kinds of organic nitrogen source (e. g. amino acids).
红色糖多孢菌的摇瓶培养基中使用不同有机氮源时红霉素的效价明显不同。
Bean cake was the best nitrogen source, and their optimal mass concentration for Bacillus sp. X18 and X10-1-2 were 4 % and 1 %, respectively.
两株菌的最佳氮源均为豆饼，X18的最佳豆饼质量分数为4%，而X10 - 1 - 2的最佳豆饼质量分数为1%。
The results showed: nitrogen source and precursor feeding resulted in significant increase of taxol production.
结果表明，一定氮源和前体饲喂对紫杉醇产量提高有显著促进作用。
The system of nitrogen source is designed for the need of pure nitrogen of the large space environment simulating equipment in our country.
氮气源系统是根据我国大型空间环境模拟设备对纯净氮气的需要而设计的。
Results: the production of c. neoformans melanin was affected by various factors, in which nitrogen source and glucose affected it obviously.
结果：新生隐球菌黑色素的产生受多种因素的影响，其中以氮源、葡萄糖和温度的影响最为明显。
Starch and yeast powder are the best carbon source and nitrogen source through studies on fermentation culture medium.
对发酵培养基进行了研究，淀粉、酵母粉是阿维菌素发酵的最合适碳源物质和氮源物质；
Different carbon source, nitrogen source and inorganic salts in medium affected the cell growth, the ice nucleation activity and the xanthan gum ratio.
培养基中不同的碳源、氮源和无机盐影响冰核细菌的生长、冰核蛋白的表达及黄原胶的产率。
Results show that carbon source, nitrogen source affected plasmid DNA yield significantly.
实验结果表明：碳源、氮源对质粒dna产量有明显的影响。
Effects of sugar content, carbon source, nitrogen source and precursor feeding on taxol production of endophytic fungus in liquid fermentation were studied .
研究了在一株产紫杉醇真菌的发酵培养中，初始糖浓度、碳源、氮源和前体饲喂对生物量和紫杉醇合成的影响。
Fermentation experiment indicated: the optimum carbon source was glucose, the optimum nitrogen source was peptone, growth factor was tomato juice.
通过单因子试验，筛选了用作发酵剂制作的最佳碳源为葡萄糖，最佳氮源为蛋白胨，生长促进因子为番茄汁。
Effects of initial carbon source concentration and nitrogen source concentration on D-ribose fermentation and feeding process in flask.
初始碳氮源浓度对d -核糖发酵的影响及摇瓶补料工艺。
Hydorlyzed cottonseed protein can be used as the nitrogen source of fermentation medium.
棉籽水解蛋白可作为菌体发酵氮源。
Used 5 factors, respectively is: Humidity, the carbon source, the nitrogen source, inoculates the quantity and PH values.
使用了5个因素，分别是：水分，碳源，氮源，接种量和PH值。
The optimum carbon source was glucose and peptone as the optimum nitrogen source.
葡萄糖，蛋白胨是两菌株发酵产酶较好的碳、氮源。
Through enrichment culture using IMI as sole nitrogen source, a strain named NJ2 was isolated from the soil .
采用唯一氮源筛选策略，从土壤中筛选到一株命名为NJ2 的菌株， 可高效转化IMI为一种极性更大的化合物。
At its liquid fermentation culture process, the most appropriate carbon source is glucose and white sugar, while the most appropriate nitrogen source is Ammonium Tartrate.
其液体培养最适碳源为葡萄糖、市售白糖；最适氮源为酒石酸铵。
To study the influence of fermented culture mediums with different nitrogen sources on the growth of HD-1, nut cake and non-salt fish meal were chosed as the nitrogen source.
为了研究不同氮源的发酵培养对HD-1生长的影响，我们选用了花生饼和无盐鱼粉作为氮源。
Its main effective components are carbon source material, nitrogen source material, and mineral elements. It contains 0.5-2.5% of tea cake powder.
其有效成分主要为碳源物质，氮源物质和矿质元素，由至少一种原料组成的氮源物质中具有在培养基中含量为0.5 ~ 2.5%的茶枯粉。
Its main effective components are carbon source material, nitrogen source material, and mineral elements. It contains 0.5-2.5% of tea cake powder.
其有效成分主要为碳源物质，氮源物质和矿质元素，由至少一种原料组成的氮源物质中具有在培养基中含量为0.5 ~ 2.5%的茶枯粉。
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