铜

Stainless steel 35-42 °Be FeCl 3 35-55 Mild steel 35-42 °Be FeCl 3 35-55 Beryllium copper 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Copper and copper 30-42 °Be FeCl 3 or 40-55 alloys ammoniacal copper or 33 °Be acidic CuCl 2 Inconel and other 38-42 °Be FeCl 3 or 45-55 high nickel alloys conc nitric/conc hydrochloric acid/water 1:1:3 Aluminium 20% NaOH 60-90 or conc hydrochloric 20-65 acid/water 1:4 55 or alkaline potassium ferricyanide Brass 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Molybdenum Alkaline potassium 55 ferricyanide 40-55 or 40 °Be Fe(NO 3 ) 3 Titanium 10-50% HF 30-50 (optionally with HNO 3 )*The concentration of etchant (column 2) is measured in Degrees Baume where:°Be = 145 (SG - 1/SG); and SG is the specific gravity of the solution.

表美- 00002表2金属共同腐蚀剂*温度° C的不锈钢35-42 °成为氯化铁三 35-55低碳钢35-42 °成为氯化铁三 35-55铍铜30-42 °成为氯化铁3或40-55氨铜或33 °是酸性CuCl的2铜及铜30-42 °成为氯化铁三或40-55合金氨铜或33 °是酸性CuCl的2镍铬铁合金和其他38-42 °成为三氯化铁3或45-55高镍合金浓硝酸/浓盐酸/水1时01分03秒铝20％的NaOH浓盐酸60-90或20-65酸/水1：4 55或氰化钾铜30-42 °碱性钾成为三氯化铁3或40-55氨铜或33 °是酸性CuCl的二钾55钼碱性铁氰化钾40-55或40 °成为铁Fe（NO 3）3钛10-50％的HF 30-50*的浓度对侵蚀剂（栏2）测量波美度其中：°成为= 145（法兴- 1/SG）；和SG是比重。

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请联系我们的销售部门，获得如下详细产品范围：铜水池、铜台面盆、厨房铜水池、铜浴缸、铸青铜水池、铸青铜台面盆、铸青铜厨房水池、铸青铜浴缸、黄铜水池、不锈钢水池、石水池/浴缸、玻璃盥洗池、木质水池、鸟澡盆、铜信箱、铜吸油烟机、铜壁炉、铜相框、镜框、开关面板、地毯、青铜寄存器、烛台、台灯、防风灯、提灯、烛架、咖啡桌、餐具、E.P.N.S器皿和其他手工艺品等。

Nutrition solution culture, ICP-AES, the differential centrifugation technique and sequential chemical extraction method, suppression subtractive hybridization , RAPD were used in this thesis to study the mechanisms of copper tolerance and accumulation by Commelina communis grown in copper mine deposit which was reported to be a Cu hyperaccumulator, compared with C.

论文以本实验室报道的生长于矿山上的铜超富集植物鸭跖草和生长于正常土壤中的鸭跖草为试验材料，分别运用溶液培养法、ICP-AES元素测定技术、差速离心法和化学试剂逐步提取法、抑制消减杂交技术、RAPD技术研究了矿山和非矿山两种生境鸭跖草对铜的耐性和吸收积累的差异，两种生境鸭跖草在铜胁迫下养分吸收和积累的差异，两种生境鸭跖草在铜胁迫下生理反应的差异，以及铜在鸭跖草细胞内的分布及结合形态研究，矿山鸭跖草差异表达的cDNA克隆，铜对鸭跖草种群遗传分化的影响，从这几个方面探讨了矿山鸭跖草对铜的耐性机理。

Nutrition solution culture, ICP-AES, the differential centrifugation technique and sequential chemical extraction method, suppression subtractive hybridization , RAPD were used in this thesis to study the mechanisms of copper tolerance and accumulation by Commelina communis grown in copper mine deposit which was reported to be a Cu hyperaccumulator, compared with C. communis grown in normal soil. Several aspects were examined, including: difference of copper tolerance and accumulation between C. communis grown in copper mine deposit and that grown in normal soil; difference of growth and nutrient accumunation between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; physiological differences between between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; subcellular distribution and chemical forms of Cu in C. communis; identification of cDNA fragments differentially expressed in C. communis grown in copper mine deposit; genetic diversity and copper tolerance of C. communis, tolerance mechanisms to copper in C. communis are discussed.

中文题名鸭跖草对铜的耐性机理和富集特征研究副题名外文题名 Mechanisms of Cu tolerance and accumulation by Commelina communis 论文作者廖斌导师蓝崇钰束文圣学科专业环境科学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数128页关键词重金属污染植物修复超富集植物土壤污染铜污染鸭跖草馆藏号BSLW /2003 /X53 /12 论文以本实验室报道的生长于矿山上的铜超富集植物鸭跖草和生长于正常土壤中的鸭跖草为试验材料，分别运用溶液培养法、ICP-AES元素测定技术、差速离心法和化学试剂逐步提取法、抑制消减杂交技术、RAPD技术研究了矿山和非矿山两种生境鸭跖草对铜的耐性和吸收积累的差异，两种生境鸭跖草在铜胁迫下养分吸收和积累的差异，两种生境鸭跖草在铜胁迫下生理反应的差异，以及铜在鸭跖草细胞内的分布及结合形态研究，矿山鸭跖草差异表达的cDNA克隆，铜对鸭跖草种群遗传分化的影响，从这几个方面探讨了矿山鸭跖草对铜的耐性机理。

The solubility of Cu from Cu oxide, Cu sulfate, tri-basic copper chloride, Cu lysine, and Cu proteinate was determined in deionized water, dilute acid or buffer. Twenty crossbred (Poll Dorset X Small Tail Han-yang) wethers were used to assess the effects of copper sources on concentration of plasma copper in sheep. All sources provided 8 mg of added Cu/kg of DM.

研究主要分三部分进行：(1)选用硫酸铜、氧化铜、碱式氯化铜、赖氨酸铜和铜蛋白盐五种铜源，利用不同溶剂模拟绵羊消化道的不同环境，对各种铜源的溶解性进行分析，并用20只杂交一代羯羊作为试验动物，采用单向分类设计，探讨各种铜源对绵羊血铜代谢规律的影响，各种铜源的铜添加水平均为8mg·kg~(-1)。

Imports of copper materials such as: oxygen-free copper, copper, copper, Sambo Copper, brass, bronze, phosphor copper, beryllium copper, tungsten copper, cups with disabilities copper, tin bronze, phosphor copper, tin, tungsten copper, tin zinc and copper, beryllium bronze, zirconium bronze, aluminum bronze, chromium zirconium copper, copper alloy hardware Gold, silver copper, Nickel Silver, copper, copper rod, copper strip ..., titanium alloy, ductile iron demand ....

进口铜料如：无氧铜，紫铜，纯铜，三宝红铜，黄铜，青铜，磷铜，铍铜，钨铜，杯士铜，锡青铜，磷铜，锡钨铜，锡锌铜，铍青铜，锆青铜，铝青铜，铬锆铜，硬铜合金，含银纯铜，洋白铜，铜板，铜棒，铜带。。。，钛合金，球墨铸铁。。。。

My company mainly produces all kinds of precision stainless steel shaft pin, various micro-metal axis pin, pin terminal used to connect the needle used in the public needles, mother-pin, public side, the mother side, jack shaft, stainless steel shaft core, copper-axis batteries, pins, PIN needles, medical wire cable with connectors, copper needle, needle charger, probe, copper head, tiny needle-axis, negative ion needles, needle massage, hair-dryer with copper pieces, green needle, stainless steel needle environmental protection, environmental protection copper needle, environmental protection stainless steel axle, aluminum pieces, pins, copper feet, Copper Cylinder, solder columns, air plugs with pins, rivets, screws, axles, flower axis, micro-axis, optical axis, copper axes, iron column, iron shaft, aluminum shaft, strap pins, glasses, axle core, copper, suo core, lock beads, copper beads environmental protection, steel, copper tablets tablets stainless steel, steel sets, stainless steel tube, precision copper tube , copper sets, aluminum kits,ú, axial needle, the needle shaft, the needle, Cylinder, components, micro-metal shaft, strap accessories, jewelry fittings, micro-screwdriver parts, micro-electronic precision lathe automatic lathe parts of various micro - axis system of pieces of car!

我公司主要生产各种不锈钢精密轴针，各种微型金属轴销，端子用插针，连接器用针，公针，母针，公端，母端，插孔，转轴，不锈钢轴芯，铜轴芯，插针、PIN针，连接线医疗线用接插件，铜针，充电器用针，探针，铜头，微小轴针、负离子针，按摩针，吹风筒用铜件，环保铁针，环保不锈钢针，环保铜针，环保不锈钢车轴，铝件，插脚，铜脚，铜柱，焊柱，航空插头用针、铆钉，螺丝钉，车轴，花轴，微型轴，光轴，铜轴，铁柱，铁轴，铝轴，表带针、眼镜垫片、轴芯、铜芯、琐芯，锁珠，环保铜珠，钢芯、铜粒、不锈钢粒、钢套，不锈钢管、精密铜管、铜套，铝套，铁圈，轴针、针轴，针尖、锁芯、元器件、微型金属轴，表带配件，首饰配件、微型螺丝件、微型电子精密车床件等自动车床各种微型轴件车制！

Optimal design of copper-aluminum compound radiator fin based on explosive welding technology

铜-铝合金铜铝铜铜铝结构铜、铝导体铜、铝合金铜铝期货镍-铜-铝铜铝母线&铜铝焊条，铜铝焊丝&铜铝化合物高铜铝合金铜铝合金化铜铝复合板

The small-grained spherical copper powder is large in the contact area with the steel base and binds sufficiently and firmly in the process of sintering.

小颗粒球形铜粉与钢基体接触面积大，烧结过程中结合充分、牢固，大颗粒球形铜粉与小颗粒球形铜粉烧结相容性好，结合牢靠，并且大颗粒铜粉之间的间隙大，螺旋铜钉层可进一步加大这个间隙，改性聚甲醛可以深埋在螺旋铜钉及大颗粒铜粉的间隙中，使改性聚甲醛工作更可靠。

With this method the copper plating graphite powder was made up in 50% copper content .The silver- copper plating graphite composite was prepared while the silver- copper-graphite composite and the silver-graphite composite were also made up together .The mechanical and electric characteristics of the three kinds of composites were tested and it was found that the copper plating graphite powder can only optimize the properties of the silver matrix composite under the high content of the graphite ,the conductivity and the mechanical property was improved and the material could take higher current in the same carbon content .At 20% carbon content, the resistivity of Ag-graphite composite was 1.67 times as high as that of silver- copper plating graphite composite, the resistivity of Ag-Cu-graphite composite was 3.23 times as high as that of silver- copper plating graphite composite. The bending strength of silver-copper plating graphite composite was 2.17 times as high as that of silver- copper-graphite composite, and the bending strength was 2.11 times as high as that of silver- copper-graphite composite. The wearability of silver- copper plating graphite composite was also enhanced greatly at high carbon content.

利用该方法制备了50%铜含量的镀铜石墨粉，然后进一步制备了一系列相同碳含量的银-石墨复合材料、银-铜-石墨复合材料、银-镀铜石墨复合材料，对三种材料的机械、电气性能进行了综合对比，发现在低碳含量时镀铜石墨粉不能改善复合材料的上述主要性能，而在中高碳含量时则能明显优化复合材料的整体性能，提高了复合材料的电导率，使复合材料在中高碳含量时既具有较高的耐磨性同时也能负载较大的电流，复合材料的机械性能也因镀铜石墨粉的加入而大幅提高，20%碳含量时，银-石墨复合材料的电阻率是银-镀铜石墨复合材料的1.67倍，银-铜-石墨复合材料的电阻率为银-镀铜石墨复合材料的3.23倍，银-镀铜石墨复合材料抗弯强度是银-铜-石墨复合材料的2.17倍，是银-石墨复合材料的2.11倍，同时，在实验给定的条件下，中高碳含量时银-镀铜石墨复合材料的机械磨损耐磨性和通电磨损耐磨性都得以显著提高，银-镀铜石墨复合材料在实验时的接触电压降也更为稳定。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了