查询词典 copper

A method for the determination of high-content of copper in copper materials by flame atomic absorption spectrophotometry using sub-sensitive spectral line at 249.20 nm is reported in this paper.

中文摘要：利用铜的原子吸收光谱次灵敏线249.20 nm，并适当偏转燃烧器角度，原子吸收分光光度法测定含铜物料中的高含量铜。

Copper was reduced by formaldehyde which was contained in the effluent of chemical copper plating , and EDTA in the effluent was reclaimed after acidify.

探讨了利用原化学镀铜废液中的甲醛将铜还原，后酸化回收 EDTA的新工艺。

The Zijinshan copper-gold deposit is the high-sulphur epithermal deposit,which is characterized by both the high argillaceous alteration of dickite and alunite and the copper mineral association of enargite, digenite and covellite.

紫金山高硫浅成低温热液型铜金矿床以一套独具特色的由地开石、明矾石组成的高级泥质蚀变和由硫砷铜矿、蓝辉铜矿、铜蓝组成的铜矿物组合为特征。

Catalysts are made by impregnating a porous transition alumina support with an aqueous solution of a copper ammine carbonate complex, draining off any excess of the impregnating solution, and then heating the impregnated support to a temperature above 80 DEG C to decompose the complex thereby depositing a basic copper carbonate compound on the surfaces of the pores of the transition alumina support.

用作例如催化剂的铜／氧化铝组合物，通过用碳酸铜氨配合物的水溶液浸渍一种多孔氧化铝载体，排出任何多余的浸渍液，然后加热所浸渍的载体到80℃以上的温度来分解所述配合物，从而在所述过渡型氧化铝载体的气孔表面沉积一种碱式碳酸铜来制备。

And electrolysis method using chemical precipitation of copper from copper ammonia water waste.

本文采用化学沉淀法和电解法从铜氨废水中回收铜。

From the angle of the soil enzymes,lead to mild zinc and copper pollution improvement, and the copper pollution repair effect is not significant.

从土壤酶角度看，铅对轻度锌和铜污染有改良作用，而对铜污染修复效果不显著。

A toxic double salt of copper arsenate and copper acetate .

一种由砷酸铜和醋酸铜形成的有毒复盐。

Lin Tong Line, tin copper, brass line, red copper, stainless steel line, nickel spring steel wire, galvanized lines, aluminum, white copper, tin wire, tin, enameled wire, pneumatic components, Electromagnetic valve, cylinder, fast joints, PU trachea.

磷铜线、镀锡铜线、黄铜线、红铜线、不锈钢线、镀镍弹簧钢线、镀锌线、铝线，白铜线、锡丝、锡条、漆包线、气动元件、电磁阀、气缸、快速接头、PU气管。

Professional copper (brass, red bronze, green bronze, copper), nickel, black nickel, copper-zinc alloy, antique handicrafts, galvanized, imitation gold, black gun, pickling, trivalent chromium, and zinc , color zinc, blue white zinc, including all types of mold plating and mechanical products, such as the size of items within the outer diameter chrome-plated hardware, are to achieve the national leading level, and are members of the Association of Ningbo City, electroplating units, the stability of the credibility of the national quality assurance business!

专业镀铜（黄铜、红古铜、青古铜、紫铜）、镀镍、黑镍、锌合金镀铜、工艺品仿古、镀锌、仿金、枪黑色、酸洗、三价铬、黑锌、彩锌、篮白锌，包括电镀各类模具及机械产品、大小件内外径等镀硬铬，皆达到全国领先水平，而且是宁波市电镀协会会员单位，全国质量稳定信誉保证企业！

DISCUSSION The copper response has been deeply studied so far with two bacteria, E. coli and Enterococcus hirae (33, 37, 39), but the elucidation of the copper systems in M. xanthus will provide a missing piece in the complicated puzzle of bacterial adaptation to this metal under natural environmental conditions: how do cells handle different copper concentrations during a complete life cycle?

讨论 铜的反应一直深入研究，所以到目前为止，有两名细菌，大肠杆菌和肠球菌平江（ 33 ， 37 ， 39 ），但澄清铜系统米细菌将提供一个一块失踪，在纷繁复杂的拼图细菌适应这下金属的自然环境条件：怎么处理细胞不同铜浓度，在一个完整的生命周期？

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。