查询词典 dioxides

In this paper, three different modified nanosized titanium dioxides were prepared, the photocatalytic activities of TiO_2 are all largely improved, so we make instructive research for the applications of TiO_2 to environmental purification and contaminations disposal.

本文通过以上三种改性方法制备了改性纳米TiO_2光催化剂，其光催化活性均有较大程度的提高，为TiO_2用于环境净化和污染物的治理进行了有益的探索。

Since many enterprises with high energy consumption are concentrated in Lanzhou, the emission of sulfur dioxides and nitrogen oxides has gone far beyond the standard level.

特别是兰州地区，大型的高耗能企业比较集中，二氧化硫、氮氧化物严重超标，急需利用天然气等清洁优质能源，以改善能源结构和大气环境。

The result shows that there is a close relationship between specific capacitance and BET surface areas. Meanwhile the specific capacitance was impacted little by the structure of the nano-manganese dioxides. However, the product performance of high rates, was influenced by structure, the higher rate can be obtained with the more perfect crystal structure.

结果表明，该二氧化锰材料的颗粒尺寸约几十nm，在0.1Ag^(-1)电流密度下放电时产物的比电容最高，可达149Fg^(-1)，二氧化锰的大倍率放电性能与其结构特征直接相关，材料的晶体结构越完整其大倍率放电性能越好。

Carbon dioxides, force the low altitude temperature go up, South Pole iceberg, the

二氧化碳，就迫使低空温度升高，南极冰山

Boreal forests cover less then 4% of the total area of the earth, but the oxidation inside marshes produce lots of carbon dioxides.

摘要寒带沼地之面积虽只占全球面积不到百分之四，但由於沼地之氧化作用，产生了大量的二氧化碳。

Many studies on CO2 geochemistry show that the carbon dioxides of CO2 -high pools in petroliferous basins are from degassing of the undegassed mantle.

近年来大量地球化学研究发现，全球含油气盆地已发现的高含CO2气藏中CO2主要是由未脱气地幔的脱气作用贡献的。

Mukamal and colleagues used meterological and pollutant monitors to measure air temperature, barometric pressure, humidity, and a range of pollutants such as fine particulate matter, black carbon, and nitrogen and sulfur dioxides.

Mukamal和他的同事利用气象和污染物监测来衡量空气温度，气压，湿度以及一系列的污染物如细颗粒物、黑碳、氮和二氧化硫。

Mukamal and colleagues used meterological and pollutant monitors to measure air temperature, barometric pressure, humidity, and a range of pollutants such as fine particulate matter, black carbon, and nitrogen and sulfur dioxides.

Mukamal和他的同事利用气象和污染物监测来衡量空气温度，气压，湿度以及一系列的污染物如细颗粒物、黑碳、二氧化氮和二氧化硫。

Many studies on CO2 geochemistry show that the carbon dioxides of CO2-high pools in petroliferous basins arc from degassing of the undegassed mantle.

近年来大量地球化学研究发现，全球含油气盆地已发现的高含CO2气藏中CO2主要是由未脱气地幔的脱气作用贡献的。

The angle-dependent interference pigments use different materials as substrates,on which many kinds of metal dioxides and organic dyes are coated,so the pigments which are observed from the different angle gain different colours.

随角异色光干涉颜料是以多种材料作为基片，在基片表面包覆多种金属氧化物或有机染料，从而制得随观察角度的改变而观察到不同颜色的颜料。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。