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A comparison of the degradation effectiveness of PVA by potassium ferrate, sodium hypo-chlorite and combination of them was studied. The effects of potassium ferrate and sodium hypochlorite dosage, oxidation time, initial concentration of PVA and pH on removal rate of PVA were explored.

文章比较了高铁酸钾、次氯酸钠、高铁酸钾与次氯酸钠联用对PVA的降解效果，考察了高铁酸钾和次氯酸钠的投加量、氧化时问、PVA溶液的pH值和初始质量浓度对PVA去除率的影响。

TYH-60 and TYH-100 are the special equipment for cold pressing production of wrought iron materials, which adopt imported inverter technique with high bearing capacity and various mold patterns and are equipped with different patterns of so as to roll form different patterns on flat steel, square steel, round steel, square pipe and special pipe of certain specifications.

我厂从事铁艺设备，铁艺机械的研制，开发，生产的专业厂家，主产品有手动，电动，切断，冲压，高频加热五大类。4。 TYH-60和TYH-100是冷压生产铁艺用料的专用设备，采用进口变频技术，承载能力大，模具图案多，配置不同图案的模具，可将一定规格的的扁钢、方钢、圆钢、方管及异形管辊压出不同的花纹图案。

The mineralogical form in which the iron occurs in the concentrates of zinc sulphide, and the effect of the iron on direct leaching of the concentrates are subjects of this paper.

铁闪锌矿的铁含量可在很大的范围内变化，其物理化学性质也随铁含量而变化，因此对精矿的湿法直接处理产生很大的影响。

An evaluation on adsorption removal of chromium, arsenic, and copper from wood preservative CCA by hydrous ferric oxides, associated with effects of humic acid, was studied in this paper. Results showed that removal percentage of single chromium and arsenic by HFO increased with pH of solutions, while that of single copper by HFO decreased.

以木材防腐剂CCA中的重金属离子铬、砷、铜为研究对象，讨论了3种重金属离子在水合铁氧化物上的相互作用机理，评价了该铁氧化物对3种重金属离子的吸附去除效果，并探讨了腐殖酸对铁氧化物去除3种重金属离子的影响。

Company products are mainly divided into "round cans, square cans, profiled cans, iron crafts" four series; by end-use is divided into: gift box (Table boxes, pencil boxes, CD boxes, jewelry boxes, glasses box, poker box, perfume jars, hand-pull cans, cans of money ......); food cans (coffee cans, cans of chocolate, tea, biscuit tins, cake tins, ginseng cans, tanks, cigarette case ......); Rail jar crafts (lock key chain, hanging lamps, candlesticks, ash boxes, pot mats, coasters, buckets ...... all types of painted iron handicrafts).

公司现生产的产品主要分为&圆型罐、方型罐、异型罐、铁制工艺品&四大系列；按用途分为：礼品盒（表盒、铅笔盒、CD盒、手饰盒、眼镜盒、扑克盒、香水罐、手挽罐、钱罐……）；食品罐（咖啡罐、巧克力罐、茶叶罐、饼乾罐、蛋糕罐、人参罐、酒罐、烟盒……）；铁罐工艺品（锁匙扣、挂灯、烛台、烟灰盒、煲垫、杯垫、水桶……各类彩绘铁制工艺品）。

The Company is an emerging carbon refractories specialized production factory, main products have mixed iron motor aluminum carbon brick kiln, blast furnace with sintering porous aluminum carbon brick, molded carbon bricks, mixed iron and iron tank cars do not burn carbon brick of aluminum silicon carbide composite corundum brick and developed corundum--type silicon carbide carbon brick.

本公司是一个新兴的碳质耐火材料专业化生产厂，主要产品有混铁车用烧成铝碳砖，高炉用烧成微孔铝碳砖，模压碳砖，混铁车和铁水罐不烧铝碳化硅碳砖，复合刚玉砖及研制开发的刚玉-β型碳化硅碳砖。

Of raw materials to make ALE Series Stroke Stop and Stroke Switch use of carbon steel, ordinary gray cast iron or ductile iron back to BURDEN; reduce the liquid iron in the alloy elements such as Cr, Mn and other content, reducing its molten iron-containing gas; before the next core sand core all the overhead brush paint and the storage period to prevent the sand core to absorb moisture; in rainy days or high humidity of the season, the next best to use torch to the former core cavity, the surface of sand core baking again, in order to reduce sand-fat content; high-temperature casting a small valve in order to facilitate their own exhaust and the reduction of molten iron casting slag produced.

6原料尽量使用碳钢、普通灰铸铁或球墨铸铁回炉料；降低铁液中的合金元素如Cr、Mn等含量，减少铁液自身含气量；将下芯前的砂芯全部架空刷涂料且限期存放，以防砂芯吸潮；在阴雨天或湿度较大的季节，下芯前最好用喷灯将型腔、砂芯表面烘烤一遍，以减少砂型发气量；采用高温浇注小阀门，以利于铁液自身排气和减少铸渣产生。

Robert Audley's heart sank within him as the shabby hired vehicle stopped at a stern-looking barred fence, and the driver dismounted to open a broad iron gate, which swung back with a clanking noise and was caught by a great iron tooth planted in the ground, which snapped at the lowest bar of the gate as if it wanted to bite.

罗伯特·奥德利的心往下一沉，当破破烂烂的马车停在面目冷峻的铁栅栏前的时候；马车夫下车推开一扇宽阔的铁门，铁门哐啷一声向后晃动、撞在埋在地里的一个铁牙齿上，铁牙齿扑在铁门的最低的一根铁条上，仿佛要咬它似的。

The existence ofpolar nanoregions dramatically influences the extrinsic dielectric nonlinearityof paraelectric phase. 5 Slow relaxations of field induced piezoelectricresonance of paraelectric barium stannate titanate were observed after eitherapplying or removing a DC bias field. This phenomenon is attributed to slowspace charge dipoles formed by injected homocharges and validated by theobservation of a negative piezoelectric constant. Isothermal study ondielectric constant and discharging current after application or removal of astep field were performed. The relaxation laws in ferroelectric andparaelectric phases are different. The transportation of homocharges arebelieved to be responsible for the strong relaxation behavior in paraelectricphase. Domain wall can trap space charges thus the relaxation in ferroelectricphase is relatively weak. Abnormal phenomena, such as slim-waisted hysteresisloops, abnormal C-V curves and clockwise reversible hysteresis loops observedin barium stannate titanate ceramics, were attributed to pinning of gatheredpoint defect on domain walls.

5研究了直流电场施加和撤除引起的钛锡酸钡顺电相场诱压电谐振慢弛豫现象，认为这是同极性空间电荷注入形成空间电荷慢偶极子导致的，观察到的负压电常数证实了这个观点；研究了等温条件下阶跃电压作用下介电常数和放电电流的慢弛豫现象，发现钛锡酸钡陶瓷的铁电相和顺电相呈现不同的宏观性能时间依赖规律，认为是同极性空间电荷的输运过程导致了顺电相样品呈现强的弛豫行为，铁电相中存在畴壁捕获空间电荷的机制因而其弛豫行为较弱；研究了钛锡酸钡陶瓷中束腰电滞回线、反常 C-V 曲线和顺时针可逆电滞回线等反常现象，将其归因于点缺陷的聚集对铁电畴畴壁的钉扎作用，多次电场循环有助于解除这种钉扎状态，减弱反常特征。

The activity coefficients of both titanium and silicon in the copper melts are much small.

由于不同铁基溶液而铜液，这在实验上排除了熔渣中带铁或铁氧化物的可能性。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。