这些微生物可以让土壤中植物生长所需的氮含量增加，在冬天让植物仍保持活跃。
These microbes enable the soil to have more nitrogen, which plants need to live and they remain quite active during the winter.
现在很容易了解获得和保持厚氮大气的条件。
The conditions for acquiring and retaining a thick nitrogen atmosphere are now readily understood.
壳牌销售加氮汽油，以保持发动机零件干净。
Shell USES nitrogen enriched gasoline to help keep engine parts clean.
传统的恒温器不够好，但是19世纪发明的Dewar flask一次能保持像液态氮这样的温度在- 1960华氏摄氏度的低温液体好几个月之久。
A conventional thermos isn't good enough, but a Dewar flask, invented in the 19th century, holds cryogenic fluids like liquid nitrogen at temperatures of -196oc (-321of) for months at a time.
微生物使重要的化学元素例如碳和氮进行循环，从而帮助保持这个世界能让所有的生物类型生存居住。
Microbial cycling of such critical chemical elements as carbon and nitrogen helps keep the world inhabitable for all life forms.
你能做的就是尽量保持氮平衡。
研究重点是可多次启动的一氧化二氮单元推进剂推力室，适用于小卫星的位置保持和相位保持。
The research emphasis is restartable nitrous oxide monopropellant thruster suitable for keeping the position and phase of small satellite.
氢氮比是合成氨装置最为关键的参数之一，保持比值始终处于最佳状态是提高合成氨产量的有效措施。
The H-N ratio in the production of synthetic ammonia is one of the most important parameters to increase the product yield which is an efficiency measure to keep the optimal production.
结果表明：河道水质在净化后，通过引水或充氧使河道保持一定的溶解氧，可有效抑制沉积物中有机物、氨氮等污染物的释放。
The result showed that, after the river water was purified, release of organic, ammonia etc can be inhabited by drawing fresh water or aeration to improve DO concentration in river.
它保持氮平衡，并提高思维能力，可以减少，因为身体活动变得更加强烈。
It maintains nitrogen balance, and it enhances thinking abilities that can decline as physical activity becomes more intense.
中度放牧并未使草地牧草产量和红三叶的重要值降低，同时使草地红三叶均质度系数保持在远低于1.0水平以下，但使土壤全氮含量下降0.085%。
Meantime it keeps the coefficient of homogeneity of red clover far below the 1.0 level but causes the total nitrogen content of soil to decrease by 0.085%.
两种表面热处理液体渗氮及渗硫工艺与现行生产上原采用之液体渗炭淬火处理工艺，在尽量保持其他可变数不变的情状下加以比较。
Two surface heat-treatment processes, liquid nitriding and sulfurizing, are used to compare with the current production process of liquid carburizing, with other variables remaining constant.
采用本发明方法，催化-吸附剂经过多次再生仍能保持高活性，保持脱氮的稳定性。
The invention can keep high activity after regenerating catalyst-absorber, to hold the stability of denitrification.
施氮总量对扬麦12淀粉沉降值、面粉膨胀势和面粉碱性水保持力影响显著。
Executes the nitrogen total quantity to raise the wheat 12 starch subsidence value, the bread flour inflation potential and the bread flour alkaline water confining force influence is remarkable.
系统脱氮效能受SRT影响不大，只要系统保持SRT大于多数反硝化菌的时代时间，脱氮率基本在90%以上。
The influence of SRT on nitrogen removal was smaller, nitrogen removal ratio always was more than 90% when SRT was longer than generation time;
系统脱氮效能受SRT影响不大，只要系统保持SRT大于多数反硝化菌的时代时间，脱氮率基本在90%以上。
The influence of SRT on nitrogen removal was smaller, nitrogen removal ratio always was more than 90% when SRT was longer than generation time;
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