查询词典 copper

The conclusion indicates: the way of the simple formula is satisfied to the requirements of engineering design; comparing with steel material, copper has better electric, better heat-resistant, lower erodible, more convenient in constructions, longer life, less pollution to the soil. Although using copper material, the earlier investment is larger, in long view, it is reasonable.

结果表明：常用简化公式算法精度满足工程设计要求；与钢接地体相比而言，铜接地体具有导电性能、热稳定性能好，耐腐蚀能力强，施工方便，可加快工程进度，寿命长，投运后减少了检验维护工作量，并对土壤无污染，但初期投资有所增加，但从长远利益考虑，采用铜接地网是合理的。

This paper detailed introduce the key technology in the new scheme of copper ground connection net: Exothermal welding and the copper facing steel.

本文还对铜质接地网新方案中的关键技术：放热焊接和镀铜钢棒给予详细的介绍。

Using glyoxylic acid to replace the harmful chemical substance formaldehyde as a reducing agent, an copper layer was deposited on rosin substrate by this electroless copper plating technology.

用乙醛酸代替有害的化学药品甲醛作为还原剂，在树脂基材上进行化学镀铜。

Using glyoxylic acid to replace the harmful chemical substance such as formaldehyde as a reducing agent, an electroless copper plating on difficulty deposited substrates was fulfilled, which including Al,Ti and wafers having TiN and TiSiN as the barrier layers.The surface morphologies and grain structures of copper deposits prepared were analyzed.

摘 要：采用乙醛酸代替有害的化学药品作为还原剂的化学镀技术，在工业纯铝片、工业纯钛片、以TiN作为扩散防护层的硅片和以TiSiN作为扩散防护层的硅片等难镀材料实现了化学镀铜。

In order to study the influence of nitric oxide and copper ion on marine algae growth,Skeletonema costatum and Gymnodinium sp.were incubated when adding different concentrations of NO and copper with different addition methods,and the preliminary functional mechanism was discussed.

为研究一氧化氮与金属铜对海洋微藻生长的影响，选用中肋骨条藻和裸甲藻(Gymnodinium sp。)进行了不同NO和Cu浓度、不同添加方式的室内培养实验，初步探讨了它们的作用机制。结果表明：一次性或每天两次加入不同浓度NO(10-5~10-10mol/L)，对微藻的生长表现出不同程度的促进或抑制作用，呈&两面性&。

OBJECTIVE: To establish a hepatolenticular degeneration rat model with excessive copper, and investigate the effects of excessive copper deposits in the liver on hepatocyte apoptosis and Bax and Bcl-2 expression.

目的：建立肝豆状核变性铜过量负荷大鼠模型，并研究肝铜沉积对肝细胞凋亡及Bax，Bcl-2基因表达的影响。

Located in Tianjin Jiangtao Jinghai County of Tianjin Development Area, the company was founded in mid-2003, specializing in copper row 3 15 ~ 8 200, and various specifications of heterotypic copper production and processing, the company occupies an area of an area of 32,000 square meters.

天津市江涛工贸有限公司位于天津市静海县开发新区，公司成立于2003年年，专业从事紫铜排3×15～8×200，及各种规格异型铜排的生产及加工，公司占地面积32000平方米。

This paper describes mainly the current development status and increasingly good application prospect of new copper hydrometallurgical technologies for treating copper sulfide ore in the world.

本文简要介绍了世界上各种处理硫化铜矿的新型湿法炼铜工艺的发展现状及其日益看好的应用价值。

Use tall purity to not have seam violet copper pipe, shutter type sine is undee hydrophily aluminium comes loose character hot fim piece use 14mpa hydraulic go up the canal ensures copper pipe and aluminium piece close together union, coil passes thermal efficiency taller;2, use wind rotor of fire prevention ABS, activity has been balanced, the moment of force that start is small, pittsburgh type oversews, not air leak; 3, electric machinery uses oiliness sliding bearing, noise is less; 4, hy

使用高浓度无缝紫铜管，百叶窗式正弦波型亲水性铝质散热鳍片并使用14mpa水压涨管保证铜管与铝片紧紧联系，盘管传热速率更加高；2、使用防火ABS风轮，变化均衡好，开启力矩小，匹兹堡式缝补，不露风；3、电机使用含油滚动轴承，噪声更小；4、水压涨管保证铜管受涨均和无走漏；5、全体冲压成型水盘，外面全体PE，周祥保温；6、容积轻盈，深度仅230mm，现场可轻而易举交换上下型，装置保护便捷。

According to the variation in the components of intermediateacid igneous rocks coming from the lower crust, it is possible to restrain the depth of the source area and the minimum thickness of the crust, and thus to provide important information for the study of the deep process of the continental intraplate mineralizationGlobally, many world level porphyry copper deposits and metallogenic systems formed by hypabyssal hot liquid have their close relationship with the synchronous adakite in spacetime and genesis; domestically, the adakitelike rocks have been identified to be related to the metallogenesis in the main metallogenic areas in ChinaThe recognition of adakitelike rocks having no relationship with the process of subduction makes it possible to construct a metallogenic model of continental intraplate porphyry metal deposits by combining other geological evidences, and this model is totally different from the metallogenic model of porphyry copper deposits with Bsubduction setting constructed by Sillitoe (1972)The existence of adakitelike rocks may be the necessary condition but not the sufficient one for forming the largescale porphyry deposits and the hypabyssal hotliquid deposits, whose metallogenic elements mainly came from the mantleThe metallogenic potential of adakitelike rocks is achieved by the entering of the mantle material, and the metallogenic specialization of adakitelike rocks is decided by the distribution characteristics of the metallogenic elements in the upper mantleAn important reason for the adakitelike magma related to subduction being advantageous to mineralization is that there were abundant high pressure and high temperature liquid coming from the subducted platepieces and the magma of high fO2 coming from the melting of subducted platepiecesHowever, for those adakitelike rocks, whose occurrence has continental plate background but does not relate to the subduction, their metallogenic mechanism is not clear yetBased on the concept of modern mineral exploration and combined with the analysis of integrated geological information, we may better realize the practical prospecting significance of the adakitelike rocks

根据起源于下地壳的中酸性岩浆岩的成分变化，可以约束其源区深度以及地壳最小厚度，为大陆板内成矿作用的深部过程研究提供重要信息。全球范围内，许多世界级斑岩铜矿和浅成热液矿化系统与同期的埃达克质岩存在密切的时空与成因联系，在国内主要成矿区带也识别出与金属成矿作用有关的埃达克岩。与俯冲过程无关的埃达克质岩的识别，使我们有可能结合其他地质证据构建完全不同于Sillitoe(1972)B型俯冲环境的斑岩铜矿成矿模式的大陆板内斑岩型金属矿床成矿模式。对于规模巨大、矿质主要源自地幔的热液矿床的形成，埃达克岩可能是必要条件，但不是充分条件。埃达克岩的成矿潜力通过地幔物质加入而获取，埃达克岩的成矿专属性由上地幔成矿元素分布特征决定。与俯冲有关的埃达克质岩浆之所以有利于成矿，重要的原因是存在大量来自俯冲板片的高压、高温流体以及俯冲板片熔融形成高氧逸度(fO2)的熔体，但产出在大陆板内背景、与俯冲无关的埃达克岩的成矿机制还不清楚。根据现代资源勘查理念，结合综合地质信息分析，埃达克质岩具有实际找矿意义。

This matter overthrew all basises I learned from Sunday school .

这件事把我从周日学校学到的所有道理都颠覆了。

It's one of the cruel ironies of aging: if you want to remember your favorite restaurants, the less you should eat at them.

这是一个老化的残酷讽刺：如果你想记住你最喜欢的餐馆，你应该更少吃到它们。