查询词典 copper

In order to recover the valuable metals in the electroplating sludge,the process flow for preparing copper sulphate and iron oxide red with the copper-contained electroplating sludge as the raw material was put forward.

为了回收电镀污泥中的有价金属，提出了以含铜电镀污泥为原料，制备硫酸铜和氧化铁红的工艺流程，并确定了从含铜电镀污泥中回收铜和铁的工艺参数。

Copper-contained electroplating sludge ; N902; copper sulphate ; iron oxide red

含铜电镀污泥； N902；硫酸铜；氧化铁红

Ti element is found to aggregate, forming an ultra-fine reaction layer in the active filler metal-ceramic joint after 260℃/24hr aging treatment. Two different-color intermetallic compounds are observed in the interface of active filler metal-copper. One is Cu6Sn5 , which is closer to active filler metals;the other is Cu3Sn, which is closer to the copper substrate.

接合后之试片，经260℃/24hr时效反应后，发现Ti元素聚集於焊料与陶瓷界面处形成一层极薄的反应层且发现在焊料与铜之反应界面有了明显颜色不同之两层介金属层生成，靠近焊料端的介金属层为Cu6Sn5，Cu片端的是Cu3Sn；而Cu6Sn5化合物从原本未时效10μm成长为25μm。

With the global economic downturn, a decline in copper occur, domestic copper price in the October 2008 rate of decline in a short span of 20 days to reach 40 percent, if the date from June, with an accumulated drop of 60%.

随着全球经济衰退，发生在铜下跌，在10月国内铜的价格在2008年的短短20天，下降幅度达到百分之四十，如果从6日起，为60％，累计下降。

The leaching ratio of copper from the copper slag, roasted at 680℃ for 4 hours, attains approximately 92% under the conditions of 2 mol/L sulfuric acid leaching for 2 hours at 70℃.

在680℃焙烧4h后，采用2mol/L硫酸于70℃浸出2h后可以达到良好的浸出效果，使铜的浸出率达到92%以上。

By machining, To make the measure of area of large-grained spherical copper powder reach 70~80% of the working area of so, achieving the purpose of even alternately distributing of copper powder and POM.

通过机械加工，使大颗粒球形铜粉分布在工作面的面积达到70~80%左右，形成铜粉与改性聚甲醛基本均匀相间分布的状况。

Through practice we know that when the thickness of polyformaldehyde layer is proper (excluding the thickness of polyformaldehyde between the large-grained copper powder and screw copper nails), it has a good comprehensive ability of load-bearing, friction and wear endurance and creep resistance.

我们通过实践了解到，聚甲醛层在适宜的厚度适宜（不含嵌入到大颗粒铜粉及螺旋铜钉间隙内聚甲醛厚度）时，其承载能力、摩擦磨损性能和抗蠕变能力的综合特性较好。

Through practice we know that when the thickness of polyformaldehyde layer is proper (excluding the thickness of polyformaldehyde between the large-grained copper powder and screw copper nails), it has a good comprehensive ability of load-bearing, friction and wear endurance and creep resistance.

我们通过实践了解到，聚甲醛层在适宜的厚度时（不含嵌入到大颗粒铜粉及螺旋铜钉间隙聚甲醛厚度，其承载能力、摩擦磨损性能和抗蠕变能力的综合特性较好。

To make the measure of area of large-grained spherical copper powder reach 70~80% of the working area or so, achieving the purpose of even alternately distributing of copper powder and POM. It has a good comprehensive ability of load-bearing, friction and wear endurance, creep resistance and heat conduction.

我们通过机械加工，使大颗粒球形铜粉分布在工作面的面积达到70~80%左右，形成铜粉与改性聚甲醛基本均匀相间分布的状况，其承载能力、摩擦磨损性能、抗蠕变能力和导热性等综合特性较好。

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-laver structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps gaps between the large-grained spherical copper powder and screw copper nails.

四层结构的钢基铜塑复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉及基体结合更牢固，提高了其承载和抗剪切的能力。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。