查询词典 titanium dioxide

Other forms of air pollution — sulfur dioxide, nitrogen dioxide and carbon monoxide — rose or fail ed to drop in 2006 after three years of decline, according to the report, which was based on Chinese government statistics.

列举其他污染在下降的数据，但同时不忘强调，这个下降的数据是中国政府给出的。引用 Falt 的话，说明对北京空气及各方面污染能符合国际标准没信心。

Carbon dioxide is maintainedbelow 305 psig by a refrigeration unit and above 245 psig with a pressure buildup coil so that carbon dioxide can be stored for an in definite period without venting.

通过一个制冷装置把二氧化碳维持在305 psig以下，同时通过一个压力积累蛇管把二氧化碳维持在245 psig以上，这样不用通风二氧化碳就可以储存一定的时间。

Meanwhile, the relationship between microstructure and physical properties is very important, and the existing position of silicon dioxide in the cell wall of wood and their bonding type influences the physical properties of silicon dioxide/wood composite.

同时，分析微细构造与物性的关系，即二氧化硅的存在空间位置、二氧化硅与木材的结合方式对二氧化硅/木材复合材料物性产生的影响。

The silicon dioxide was found in the Matrix region of cell wall of wood for silicon dioxide/wood composite.

构筑了二氧化硅进入木材细胞壁的超微构造图，介入Matrix区域。

The research results demonstrated that it was a good method that hydrxoypivalic acid was prepared from hydroxypivalaldhyde by the direct electrooxidation method at the lead dioxide and tin dioxide electrodes.

以羟基新戊醛为原料，PbO2电极对羟基新戊醛的电催化活性最高，以硫酸为支持电解质，有隔膜电解槽内，生成羟基新戊酸的选择性和电流效率最高。

It is investigated the tribological properties of tin dioxide nanoparticle modified with sodium oleate,the results exhibit that the modified tin dioxide nanoparticle can elevate the anti-wear and friction reduction performances of base Stock.

考察了用油酸钠改性的纳米二氧化锡的摩擦学性能，结果表明，改性纳米二氧化锡能够提高基础油的抗磨减摩性能。

In the light of the principle of electrochemistry , a series of experiments about the condition of GaAs films and AlGaAs films growth have been made by electrochemisuy deposition method .These experiments have been carried out with graphites as anode materials and conducting glass of tin dioxide ,stainless steel and aluminium foil of tin dioxide as cathode substrate materials in electrolyzers designed and made by ourselves and in the solution of compounded- simple sal.

根据电化学原理，采用电化学沉积方法，在自行设计及制作的电解装置中，以石墨作为阳极材料，SnO_2导电玻璃、不锈钢和SnO_2/Al 作为阴极衬底材料，在配制的简单盐溶液中，进行GaAs和AlGaAs 薄膜生长条件系列实验。

The formation of tin dioxide nanotubes on tin substrates anodizing in oxalic acid electrolytes and annealing in the air was investigated. Under optimized electrolyte, oxidation and anneal conditions, nanotubes of tin dioxide were fabricated.

单质锡箔片在草酸溶液中利用电化学阳极氧化合成出前聚体，并将前聚体通过加热氧化制备出具有纳米级孔道的二氧化锡材料。

Through XRD analysis, as the temperature of cosolvent and mass transport goes up, the wave peak intensify of tin dioxide becomes more obvious. By means of SEM, tin dioxide particulates are found evenly distributed on the matrix and the quantity of particulates become higher with the increasing cosolvent concentration. The size of particulates is about 30-50nm.

经XRD分析，复合材料中二氧化锡之波峰强度随潜溶剂浓度与质传温度之增加越趋明显；SEM观察则发现，二氧化锡颗粒析出物系均匀分布於基材内，且析出物的含量随潜溶剂浓度增加而增加，析出物的尺寸约30-50nm。

The formula of the relationship between sulphur dioxide and the sulphur in oil is indueed through this passage from the statistic of the monitoring result of oilfired boiler, after this, the restriction level and feasibility of acceptable range of sulphur content of sulphur dioxide discharged is further calculate

通过对燃油锅炉监测结果的统计而推导出二氧化硫与油品中含硫量的关系公式，再求出二氧化硫浓度达标排放的含硫量限制水平及可行性。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。