近年来

The technology of biological nitrogen removal by nitrosification denitrification, which has been developing a few years, is the combination between the oxidation of ammonia and the deoxidation of nitrite.

亚硝酸型硝化反硝化生物脱氮技术是近年来发展起来的新型的生物脱氮技术，其实质是氨的氧化与亚硝氮的还原相偶联。

There are deoxidize, plasma, microwave, microorganism and electro-chemistry technology.

主要介绍了近年来国内外在治理废气中有害成分NOx及SOx的方法，其中包括还原法、等离子技术、微波技术、微生物法、电化学法等。

Based on the latest results of the study of dephosphorization and denitrification in China and outside China, the mechanism of and process for dephosphorization and denitrification by aerobic granular sludge were approached and studied.

结合近年来国内外除磷脱氮的最新研究成果，对好氧颗粒污泥除磷脱氮的机理及工艺进行了探讨和研究。

But similar to the destinies of many countries whose traditional music is on the verge of doom in recent years, the traditional music in our country also faces depopulation, because of lack of the necessary protection measures. Some categories of songs, plays and operas with considerable value are already lost.

但近年来和许多国家传统音乐濒临绝境的命运相似，我国的传统音乐由于缺少必要的保护措施也面临着灭绝的危机，一些颇有价值的歌种、剧种、乐种已经绝响。

With gradual exhaustion of petroleum and progressive depravation of environmental quality, starch that is regarded as a reinforcing agent is widely used in rubber industry.

随着石油资源的日益枯竭和环境问题的加重，近年来，淀粉作为补强剂在橡胶中的应用也越来越受到人们的关注。

In recent years, ground of new-style PDE5 depressor cut down is not then, he is amounted to pull of blame come out, not only offerred more alternatives to clinical doctor, also make clinical doctor basis suffers from...

近年来，新型的PDE5抑制剂伐地那非、他达拉非的问世，不但给临床医师提供了更多的选择，也使得临床医师根据患。。。

This can be toldfrom increasing franchise depute cases.

近年来，日益增多的特许经营商业纠纷案例中就不乏此类情况。

In recent years, deregulation has caused the price of international calls in many countries to fall dramatically.

近年来，市场的不规范已经导致许多国家的国际长途电话价格大幅下降。

In recent years, dereliction of duty and there growing trend.

近年来，渎职犯罪又存在愈演愈烈的趋势。

Therefore, the application of hydrotalcite-like compounds and their derivate mixed oxides in catalysis is the research hotspot in recent years.

因此水滑石型类阴离子粘土及其衍生复合氧化物在催化中的应用是近年来的研究热点。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。