杂质

To study the effect of different types of web cleaner on the card sliver quality,we have done the comparison test between the guide plate web cleaner and the anti-teeth guided flat web cleaner under the condition of the same amount of air volume.

用USTER AFIS单纤维测试系统对上述条件所加工的生条进行了检测，结果显示：反齿导向盖板式棉网清洁器所生产的生条质量总体上要好于导板式棉网清洁器，其原因是反齿导向盖板排除短绒、杂质、棉结等的作用是一种&主动&作用，而导板式棉网清洁器对短绒、杂质、棉结等的排除是一种&被动&作用，梳棉机后罩板处棉网清洁器以采用反齿导向盖板式棉网清洁器为宜。

Inspecting amount of impurity and analyzing kinds of impure cotton help to improve on technologic methods for elementary processing cotton and lint of good quality.

检验杂质的含量和分析杂质的种类，有助于改进棉花初步加工的工艺措施，提高皮棉品质。

The invention discloses a high-voltage N-type metal oxide semiconductor, including a P-type substrate, a P-well drift region and an N-type drift region are arranged on the P-type substrate, a P-type contact hole, an N-type source and a field oxide layer are arranged on the P-well, an N-type drain and the filed oxide layer are arranged on the N-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the P-well is smaller than the grid oxide layer part which is positioned above the N-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly, a P-type impurity injection region is arranged in the P-well, and the P-type impurity injection region is positioned below the thin grid oxide layer.

本发明公开一种高压N型金属氧化物半导体管，包括P型衬底，在P型衬底上设有P型阱和N型漂移区，在P型阱上设有P型接触孔、N型源及场氧化层，在N型漂移区上设有N型漏及场氧化层，其特征在于位于P型阱上方的栅氧化层部分的厚度小于位于N型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层，在P型阱内设有P型杂质注入区且该P型杂质注入区位于薄栅氧化层的下面。

It is found that the long wave absorption was relatively reduced and theabsorption edges were moved to the short wave direction after gettering.

晶体的性能主要是由材料内的剩余杂质决定的〔1，设法减少剩余杂质的含量对于提高器件性能和成品率具有重要意义。

The results showed 3 types of aluminum compound prepared in this paper all had good poison protection effectiveness on such impurities as stannous chloride,lead oxide,sodium hydrogen sulfate,and so on.Moreover,the mechanism of the poison of catalyst was also discussed.

结果表明，合成的3种防中毒剂即防－1、防－2(主要成分为乙酰丙酮合铝)及防－3(主要成分为二乙酰丙酮基异丙氧基铝)对二月桂酸二丁基锡、氯化亚锡、二正丁胺、硫脲、氧化铅及硫酸氢钠等杂质均有较好的防中毒作用；不同防中毒剂对不同杂质的防中毒作用有一定的选择性。

SGS shall also issue certificate of Non-radioactivity, Non-wood substance, foreign attachment, Plastic, wood, Dust, Stones, Oily materials, Heavy Rusty Materials, without harmful impurities and totally free of any type of explosives, including, but not limited to bombs, arms, ammunitions, torpedos, mines, shells, cartridges, sealed containers or tanks or envelops, gas cylinders, explosive materials, etc.

由瑞士通用公证行於装货地颁发的无放射、无木质、杂质、塑料、木头、尘埃、石头、油滑材料、严重锈蚀材料、无有害杂质和完全没有任何爆炸物，包括、但不限於炸弹、武器、弹药、鱼雷、地雷、炮弹、弹夹、密封容器或桶罐或包装、油罐、爆炸材料等证书费用由卖方负责。

Certificates of Non Radioactivity, Non-wood substance, foreign attachment, Plastic, wood, Dust, Stones, Oily materials, Heavy Rusty Materials, without harmful impurities and totally free of any type of explosives, including, but not limited to bombs, arms, ammunitions, torpedos, mines, shells, cartridges, sealed containers or tanks or envelops, gas cylinders, explosive materials, etc.

issued by Société Générale de Surveillance – Three (3) originals and Three (3) copies；由瑞士通用公证行颁发的无放射、无木质、杂质、塑料、木头、尘埃、石头、油滑材料、严重锈蚀材料、无有害杂质和完全没有任何爆炸物，包括、但不限於炸弹、武器、弹药、鱼雷、地雷、炮弹、弹夹、密封容器或桶罐或包装、油罐、爆炸材料等证书，正本 3 份和副本 3 份； 11.6。

SGS shall also issue certificate of Non-radioactivity, Non-wood substance, foreign attachment, Plastic, wood, Dust, Stones, Oily materials, Heavy Rusty Materials, without harmful impurities and totally free of any type of explosives, including, but not limited to bombs, arms, ammunitions, torpedos, mines, shells, cartridges, sealed containers or tanks or envelops, gas cylinders, explosive materials, etc.

由瑞士通用公证行於装货地颁发的无放射、无木质、杂质、塑料、木头、尘埃、石头、油滑材料、严重锈蚀材料、无有害杂质和完全没有任何*物

EC 22. Lead as impurity in RIG Faraday rotators used for fibre optic communications systems.

在光纤通讯系统中的稀土铁石榴石法拉第旋转器中的杂质铅；在光纤通讯系统中的稀土铁石榴石法拉第旋转器中的杂质铅

Putting the contaminated scrap into the bath directly without preheating and pyrolysing will increase the metal loss by oxidation, because the contaminants are containing oxygen, which will react with liquid aluminium immediately.

将含杂质的废铝在未经预热和热分解的情况下直接加入到熔池中会增加金属的氧化损失。因为杂质中含氧，直接加入到铝液中，会立刻与铝液发生反应。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐