铜的

Investigation status and novel advances on Cu-based catalyst for methanol synthesis from syngas are summarized in this paper.

概述了以合成气为原料合成甲醇反应中铜基催化剂的研究现状和最新进展，其中分别讨论了铜基催化剂的制备方法、助剂、活性中心以及甲醇合成的机理和动力学等方面内容。

Nail gun includes F, T straight nails, 4J, 10J, 12J, 10F, 12F, K, 8N, 9N, Q, SB, P, 80,84,97,50,90,92,71,1400,64, 10 8F, 13 / 6,13 / 8, such as U-code nails and HR-22 buckle cloth nails, C-type retainer ring nails, M66 folder code nails, nail seeds frame with P515, the picture frame with V-angle nail, puzzle with waves nailing, sealing screws, ST, FST cement nail, DA oblique nail row, row plastic nails, paper platoon nails, vol nails, nail oil blanket, bed threading Net folder, network folder, such as adhesive tape bed furniture nails , we can also according to different purposes, custom-made for your special specifications or special materials, nail guns, including zinc, copper, copper, stainless steel, medium carbon steel and other materials, to adapt to decoration, furniture, car seat manufacturers , wooden box, wood pallet manufacturing, handicrafts, silk screening, packaging and other industries a full range of necessary.

枪钉类包括F、T直钉，4J，10J，12J，10F，12F，K，8N，9N，Q，SB，P，80，84，97，50，90，92，71，1400，64，10×8F、13/6、13/8等U型码钉及HR-22扣布钉，C型扣环钉，M66夹码钉，画框用P515瓜子钉，画框用V型角钉，拼板用波浪钉，封箱钉，ST、FST水泥钢钉，DA斜排钉，塑排钉，纸排钉，卷钉，油毯钉，穿线床网夹，胶纸床网夹等家具钉，我们也可根据不同的用途，为您订造特殊规格或特殊材料的枪钉，包括镀锌，镀铜，纯铜，不锈钢，中碳钢等材料，能适应装潢，家具，汽车座椅制造，木箱，木托盘制造，工艺品，丝印，包装等行业全方位的需要。

In this paper, W-Cu alloys with different percentage composition of Cu have been obtained by hot extrusion.

通过对不同铜含量（Cu质量分数20%~50%）的W-Cu混合粉末进行热挤压，获得了具有不同成分配比的W-Cu合金，并研究了铜含量对热挤压坯料组织和性能的影响。

Methods: Copper was determined by catalytic kinetic spectrophotometric method which was based on the copper catalyzing oxidation of brilliant green by potassium chlorate and hydrogen peroxide in potassium hydrogen phthalate-sodium hydrate buffer solution at pH4.20. The absorbance was measured at 624 nm.

在pH4.2的邻苯二甲酸氢钾－氢氧化钠缓冲溶液介质中，利用铜离子催化氯酸钾和过氧化氢氧化灿烂绿的指示反应，通过测量624 nm下吸光度的改变，用催化动力学光度法测定痕量铜。

Thecompounds were dispersed in the melted silver-based brazing filler metal inamorphous particles as nucleators of heterogeneous nucleation, so that made themelted filler metal form Ag and Cu solid solution as well as Cu solid solutioncontaining CePb or CeBi and that eliminated the negative effects caused by Pb orBi.

通常情况下它们以无定性态存在于银基钎料中，成为非均匀生核的生核剂，使银基钎料形成银固溶体+铜固溶体+含CePb或CeBi化合物的铜固溶体相，从而消除了 Pb或Bi的有害影响。

The paper demonstrates that copper zinc lime liquid at various ratio can be applied to control peach bacterial shot hole.Comparatively,the liquid consisting of copper sulfate,zinc sulphate,lime and water at a ratio of 0.4∶0.6∶4∶200 had its controlling effect over 90%.

该试验通过不同配比的铜锌石灰液防治桃穿孔病并进行比较，得出以硫酸铜∶硫酸锌∶石灰∶水=0 。4∶ 0 。6∶ 4∶ 2 0 0的铜锌石灰液防效可达 90 %以上，是一种经济实用、防效高的药剂，目前已在我县桃树生产上大面积推广使用

Possession of iron wood, copper, alloys and other metal surface polished, copper, nickel, chrome, tin plated bronze, plated bronze sand, bronze-plated, nickel-plated bronze, nickel-plated fog, plating Sha nickel processing business, such as the ability, especially for hardware, lighting, handicrafts, furniture and other iron-copper alloy products surface of the plating process, over the years has been a Taiwan-funded and Hong Kong enterprises, such as strength of the partners.

拥有对铁材、铜材、合金等金属表面进行磨光、镀铜、镀镍、镀铬、镀锡、镀青铜、镀青铜沙、镀红古铜、镀镍古铜、镀雾镍、镀沙镍等加工业务的能力，特别适合五金、灯饰、工艺品、家具等铁铜合金产品表面的电镀工艺，多年来一直是台资和港资企业等实力客户的合作伙伴。

Cathodic polarization curve, covering power, throwing power and operation temperature range of the brightener had been tested and had been compared with those of two kinds of abroad brightener.

介绍了酸性镀铜光亮剂，并与使用较多的两种国外酸铜光亮剂的阴极极化曲线、镀液的深镀能力、均镀能力、耐温工作范围等作了对比。

The electrochemical behavior of the graphite samples was studied in a three-electrode system by cyclic voltammetry CV

就铜含量对电极性能的影响研究发现，随着含铜量的增加，充放电效率逐渐提高，但达到某一值后又有降低趋势。在本次实验所考察的各含量中

An expression of combined heat transfer coefficient was obtained based on the heat transfer analysis of a blast furnace copper stave, and the combined heat transfer coefficients at different gas temperatures were obtained through the thermal test in an experimental furnace.

根据铜冷却壁传热过程分析，得到铜冷却壁热面复合传热系数的计算公式，并在1：1的热态实验炉上进行了热态实验，得到不同炉气温度下相应的热面复合传热系数值。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。