杂质

Excitations from localized states to the conduction band account for the absorption edge shift toward lower energies observed in the case of N/TiO_2 with respect to pure TiO_2.Mixture of visible light absorption of nitrogen doping and oxygen defect gave no obvious onset in the whole range between 400 and 800nm were observed of the samples N/TiO_(2-)A and N/TiO_(2-)M.

UV-VIS-DRS分析掺杂N/TiO_2结果表明，N/TiO_2-H和N/TiO_2-T两种催化剂在490nm处有吸收带边，可见光激发途径是掺杂的N以填隙方式形成的杂质能级吸收电子发生的跃迁引起的；而N/TiO_2-A和N/TiO_2-M两种方法得到的N/TiO_2在整个可见光区域内具有可见光吸收，没有显著的可见光吸收带边，其对可见光的激发途径是掺杂N和氧空缺共同作用的结果。

In addition, the curve of terahertz absorption coefficients can be fitted by a straight line with a slope of 1.92. From the results of scanning electron microscope, the ranges of inner diameter and outer diameters of the sample were from 5 to 15 nm and from 15 to 25 nm, respectively, and its length was in the order of micrometer.

检测结果显示，在0.2～2.0 THz内，样品折射率随着频率的增加而减小，吸收系数却随着频率的增加而增加，并可以拟合斜率为1.92的直线；样品的内径为5～15 nm、外径为15～25 nm，且长度达到了微米级，样品含C量大约为94%，其他为O和Cl杂质元素。

When a donor or an acceptor impurity is added to a semiconductor, we say that the material has been "doped".

当半导体中加入了施主感受主杂质，我们就说该物质"掺杂"了。

In the research of prescription, through the experiments we knew the influence from the Nb_2O_5 or Y_2O_3 single donor doped on high-temperature PTC ceramic, and got the curve graph drawing the resistivity and mixing quantity. In order to restrain lead volatilize and mix the rang of donors to neutralization the harmful acceptor impurity in raw materials, adopt the prescription design of Nb_2O_5 and Y_2O_3 double donors-doped. From the result, we know that regulation proportion of Nb , Y double donors, can make high-temperature PTC ceramics semiconducting, the pottery demonstrates good electric performance.

为了能够更有效的抑制铅挥发，并且使掺杂范围能够更好的调节，以"中和"原材料中的有害受主杂质，在配方设计中采用了Nb_2O_5和Y_2O_3双施主掺杂的配方，由结果可知，适当的调节Nb、Y双施主掺杂总量及Nb、Y掺杂比例，可以使高温PTC陶瓷充分的半导化，陶瓷表现出良好的电性能。

Compressed acetylene access to a clean series of towers, tower 2 clean washed by the oxidation of sodium hypochlorite solution to remove sulfur, phosphorus and other impurities, and then into the tower and 10% to 15% alkali solution and, after purification acetylene by the cooling device of the initial removal of the water saturation after the sperm of more than 98.5 purity acetylene synthesis process used to send VCM.

压缩后的乙炔进入串联的1号清净塔、2号清净塔，经次氯酸钠溶液洗涤氧化除去硫、磷等杂质后，再进人中和塔用10%～15%碱液中和，净化后的乙炔经预冷器初步除去饱和的水分后，纯度98.5%以上的精乙炔送VCM合成工序使用。

Traditionally use natural pigments indigo, saffron crocus, acorn cup, and larkspur stem...

而后用清水漂去碱和杂质。

Will not adsorb any impurity in the conveyor belt surface.

更不会吸附任何杂质于输送带表面。

At this time the sea cucumber after aestivation, the body of impurities less body wall hypertrophy, as the high rate of processing.

此时的海参经过夏眠，体内杂质少，体壁肥厚，加工出成率高。

For a given temperatures the mobility decreases with increasing impurity concentration because of enhanced impurity scatterings.

例如样品掺杂浓度为时，在一定的温度，迁移率随着杂质浓度提高而下降，因为杂质散射增强了。

Thermodynamic analysis of cobalt removing process was carried out according to electrode potential theory and Nernst equation and proves that the removal of Fe(superscript 2+), Mn(superscript 2+), Co(superscript 2+) impurities in the solution is possible through oxidization by potassium permanganate to reduce the concentration level requested by industrial production, but not applied to Ni(superscript 2+).

用电极电势理论和能斯特方程对此除钴过程进行了热力学分析，结果表明：高锰酸根的氧化对溶液中杂质Fe(上标 2+)、Mn(上标 2+)、Co(上标 2+)的去除是可行的，可以达到工业生产对杂质的浓度要求；对于Ni(上标 2+)只能进行部分氧化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。