查询词典 nitrogen

But had negative compound effect if their level were too high.5 Regressive analysis showed that the optimum compose of nitrogen, potassium and magnesium on yield and fecula contents of pumpkin was 267.8mg/L, 408 mg/L, 51.48 mg/L respectively.

计算机综合模拟寻优结果表明：当氮、钾、镁的元素含量分别为267.8mg/L、408mg/L、51.48mg/L，南瓜单果质量和淀粉含量最高。

The fermentability of Pichia stipitis NLP31 was hight on the fermentation medium with less expensive inorganic nitrogen source, thus reducing the cost of the fuel ethanol production.

树干毕赤酵母NLP31在以廉价的无机N源为发酵培养基上的乙醇发酵性能高，能够降低燃料乙醇的生产成本。

By adding ferrochrome into the converter and using the process of blowing, Ti was removed from the alloy and the nitrogen content in the molten steel was reduced to a very low level, thus greatly decreasing Ti hazard.

通过在转炉中加入铬铁吹炼去除合金中的钦，并且钢水中氮含量很低，最大程度降低了钛的危害。

The strengthening effect of vanadium to low-alloy steel is introduced,its microalloying role researched and discussed,different effects to strengthen steel with vanadium-nitrogen alloy or ferrovanadium as additive concluded.

分析了钒对低合金钢的强化作用，对VN的微合金化作用进行了研究和探讨，提出用钒氮合金和钒铁做添加剂对钢强化具有不同效果。

The strengthen ing effect of vanadium to low-alloy steel is introduced,its microalloying role researched and discussed,different effects to strengthen steel with vanadium-nitrogen alloy or ferrovanadium as additive concluded.

分析了钒对低合金钢的强化作用，对VN的微合金化作用进行了研究和探讨，提出用钒氮合金和钒铁做添加剂对钢强化具有不同效果。

The small size particles produced during ferrovanadium sizing operation are formed into nitrided briquette so as to obtain nitrided ferrovanadium, The effect of ferroalloy size, pressure, nitriding temperature and nitniding time was studied on the nitrogen content of the product.

对高钒铁合金精整过程中产生的细颗粒物料进行压块渗氮，得到氮化钒铁产品，研究了合金粒度、压块压强、渗氮温度、渗氮时间对产品含氮量的影响。

By contrast, fertiliser subsidies encourage futile over-use of nitrogen in parts of China.

但与此形成对比的是，中国的部分地区却在通过化肥补贴来鼓励氮肥的无效的过度使用。

Some of these changes are caused by CO2 emissions resulting from the use of fossil fuels, or by the application of nitrogen compounds from fertiliser to soils.

其中的一些变化的原因主要是由化石燃料的，或从化肥氮的化合物申请使用造成的土壤二氧化碳排放量。

A way to encourage larger yields and fertilize the soil is to help the production of nitrogen.

一种增加产量肥沃土壤的方法，就是帮助氮肥的产生。

The level and form of nitrogen fertilizer could significantly influence the growth and development of plant.

氮肥的施用量和形态对植物的影响很大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。