查询词典 ammonia nitrogen

Results There were about 15 kinds of chemical poisons including vinyl chloride,polyvinyl alcohol,isoparaffin,polyvinylacetate,sodium hydrate,ammonia,acid hydroc,methanol,diesel oil,carbon monoxide,carbon dioxide,sulfur dioxide,nitrogen oxides,ozo...

结果在聚氯乙烯的生产过程中，作业场所存在化学毒物较多，主要包括氯乙烯、聚氯乙烯、聚乙烯醇、过氧化物、异链烷烃类、聚乙烯乙酸酯、氢氧化钠、氨、盐酸、甲醇、柴油、一氧化碳、二氧化碳、二氧化硫、氮氧化物、臭氧、二氧化锰等。

The EM sludge with digested sludge as seed could enhance the removal efficiency of ammonia and nitrogen in wastewater, because the rate of nitrify reaction was much more quickly, and the nitrify time was less than 3hr half of the routine active sludge.

而EM污泥脱氮效果较差。(9)两种污泥中EM引种污泥对磷的降解效果较好，与常规活性污泥对照，降解率增幅达5%~10%；而EM污泥对磷的去除率低，低于常规污泥反应器。

In the depth surpasses in 10 meter deep well nitrogenation oven technique of manufacture, applied the multi-link graduation to enter the ammonia active nitrogen atom weaken compensation method, caused the nitrided uniformity distinct enhancement.

在深度超过10米的深井氮化炉制造技术中，应用了多环分级进氨气活性氮原子衰减补偿法，使氮化均匀性明显提高。

The well type gas nitrogenation oven uses the multi-layered multistage multi-link multi-spot assignment type ammonia input mode, enables the active nitrogen member fast evenly with the work piece surface union, forms the even fast nitrided level, the coordinate high speed spiral air flue, the effective addressing work piece blind hole and the deep hole nitriding craft, nitrides strongly by the microcomputer programmed control infiltrates, the diffusion technology heating curve.

井式气体氮化炉采用多层多段多环多点分配式氨气输入方式，使活性氮气分子能快速均匀地与工件表面结合，形成均匀快速氮化层，配合高速螺旋风道，有效解决工件盲孔和深孔地氮化工艺，由微电脑程序控制氮化强渗、扩散工艺加热曲线。

For the polluted water with less than 5.0 mg/L of TP and less than 34.0mg/L of NH4(superscript +)-N, four algal species films all have favorable performance to remove nitrogen and phosphorus, and Scenedesmus has the best performance to remove phosphorus and ammonia.

对TP质量浓度小于5.0 mg？L^(-1)，NH4-N质量浓度小于34.0 mg？L^(-1)的污染水体，四种藻膜都有良好的去除氮磷能力，其中栅裂藻去除TP、NH4-N的能力最强。

The nitrides with high specific surface area from oxide precursor can be prepared through temperature-programmed reduction via topotactic reaction in ammonia or nitrogen under strict reduction conditions.

在基本不破坏氧化物前驱体晶体结构和严格的氮化条件下，氧化物前驱体通过程序升温氮化经由&局部规整反应&可以制备出高表面积的过渡金属氮化物。

Beneficial bacteria, it is with the characteristic of ammonification, nitrification, denitrification, desulfidation and dephosphorylation, etc., its growth is very quickly, it has the good efficiency for degrading water quality factor, it can well reduce ammonia and nitrogen, degrade nitrite, increase the dissolved oxygen in water, activate water quality, rich water, purify water, adjust water color, increase the transparency of water, restrain the reproduction of pathogen, prevent diseases of fish, by using this product for long term, can restore the water-ecological balance destroyed by slathering disinfector, antibiotics, form the advantage community, improve the water quality quickly, keep the good water ecological balance, decrease the disk of breeding, increase the benefit of breeding.

具有氨化、硝化、反硝化、脱硫除磷等生理特性，生长快，对水质因子降解效能高，可有效降低氨氮、降解亚硝酸盐、增加水中溶氧、活化水质、肥水、净水、调整水色、增加水体透明度、抑制病原菌繁殖、预防细菌性鱼病发生、长期使用本品可有效修复因大量使用消毒剂、抗生素等破坏的水生态平衡，形成优势种群，快捷改善水质质量，维持水体良性生态平衡。达到健康养殖、生态防病的目的，降低养殖风险，提高养殖效益。

Based on the values of maximum specific growth rate, biomass and viable cells count in different cultural conditions, the optimal growth condition was regarded as follows: Glucose level of the medium was 80 g/L ~100 g/L; The pH was kept constant at 5.9 with aqua ammonia and anaerobic condition was kept by sparged with nitrogen periodically; The temperature was set at 37°C and cultured for

casei Zhang较适宜的高密度培养条件为：培养基葡萄糖浓度为80 g/L~100 g/L，以氨水为中和剂使pH保持5.9，采用间歇通氮气的方法保持环境厌氧，分批培养方式下37°C保温发酵10 h~12 h后，L。

Zero-value coefficients about interaction of water and temperature is put forward, Zero value phenomenon about interaction of water and temperature and energy character that moisture vaporizes, ammonia volatilizes, millet seeding grows and it absorbs nitrogen are brought to light.

在所研究各种体系水热耦合效应基础上，提出了水热效应零值参数概念，揭示了水热耦合效应零值现象及水热耦合作用下土壤水分蒸发，肥料氮挥发和谷苗生长及氮素吸收的能量特征。

Zero-value coefficients about interaction of water and temperature is put forward, Zerovalue phenomenon about interaction of water and temperature and energy character that moisture vaporizes, ammonia volatilizes, millet seeding grows and it absorbs nitrogen are brought to light.

在所研究各种体系水热耦合效应基础上，提出了水热效应零值参数概念，揭示了水热耦合效应零值现象及水热耦合作用下土壤水分蒸发，肥料氮挥发和谷苗生长及氮素吸收的能量特征。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。