• If by lead and tin, manganese, nickel and iron, silicon composed of copper alloys.

    组成合金

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  • Copper resumed a decline in London and New York. Aluminum, zinc, nickel, lead and tin also fell.

    伦敦商品交易所纽约商品交易所的金属价格双双下滑等金属的价格有所下降。

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  • The classification, characteristics, and application results of tin, tin lead and tin bismuth electroplating were summarized.

    总结了电镀、锡合金合金分类特点应用情况。

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  • The sample is treated with hydrochloric acid and hydrogen peroxide. The analytical conditions have been studied. The elements of coper, iron and zinc can be determined in the presence of lead and tin.

    样品采用盐酸过氧化氢分解测定条件进行了探讨,不用分离保险丝中的主要成分铅和锌,直接测定

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  • It is the world's top producer of cadmium, gold, indium, iron ore, lime, lead, manganese, mercury, molybdenum, phosphate, salt, tin, tungsten, vanadium and zinc.

    中国世界许多原材料生产大国,其中包括铁矿石灰

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  • Tarshish was thy merchant by reason of the multitude of all kind of riches; with silver, iron, tin, and lead, they traded in thy fairs.

    人因多有各类财物,就作你的客商,拿兑换你的货物。

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  • The classical Greek civilization knew of seven metals: gold, silver, copper, iron, tin, lead and mercury.

    古希腊文明社会使用金属水银。

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  • Bronze is an alloy whose chief elements are copper, tin and lead.

    青铜一种合金主要构成元素

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  • Methane sulphonic acid (MSA) has the right combination of properties for electroplating baths containing lead, tin, copper, nickel and some precious metals.

    含有一些贵金属电镀池中,甲磺酸(msa)一种很好的电解质。

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  • The forward compatibility backward compatibility tin whisker voids micro-voids and surface finishes were emphasized and how to avoid the lead free transfer problems were reviewed.

    重点论述了前兼容后向兼容、须、空洞与微空洞、可焊性涂层以及如何避免无铅转移中出现的问题。

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  • The silver reserves of associated silver deposits in relation to lead, zinc and tin take 89.55 percent in associated silver total quantity.

    有关伴生矿床银金属储量占伴生银总量的89.55%全区大多数生产矿山伴生争回收率低,未能得到合理的利用

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  • It is widely used to separate ferrous, nonferrous, nonmetal and rare metal minerals. such as gold mine, copper mine, lead-zinc ore, tin mine and so on.

    广泛用于单独黑色有色金属非金属稀有金属矿物金矿铜矿,铅,锌矿砂锡矿山

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  • Tin spray applied to circuit boards, hot air leveling and wave soldering, welding and hot dip tin lead anyone.

    适用电路板热风整平波峰焊、引线搪锡。

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  • Methyl cobalt complexes often are used as methylation agents for germanium, tin and lead compounds in environmental chemistry.

    而且,环境化学中,甲基化合物往往可以作为等金属甲基试剂

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  • In the production process, the pursuit of quality and stability, all pure tin, lead materials are pure origin Yunnan, Guangxi direct purchase.

    生产过程中,为追求品质稳定所有、纯材料原产地云南广西直接购进

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  • The principal metal mineral resources in this area are tungsten, tin, niobium, tantalum, lead, zinc, antimony, mercury and heavy rare-earth elements.

    本区金属矿产资源稀土为主。

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  • Tin welding parts and lead-tin alloy die casting, zinc, beryllium bronze, phosphorus copper alloy in electroplating copper with commonly used before also gets to improve adhesion.

    、铅合金锌压铸件、青铜等合金电镀常用预镀铜改善结合力

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  • The distribution and removal of Arsenic in heavy non-ferrous smelting such as copper, tin, lead and zinc are summarized.

    全面概括介绍了有色金属冶炼过程分布脱除情况

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  • Located in Mengzi county, Yunnan province, Bainiuchang deposit is a super-large poly-metal deposit with silver, lead, zinc, tin and copper.

    白牛厂多金属矿床位于云南省蒙自县老寨乡白牛厂村,一个银、、铜金属为主的超大型矿床。

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  • The method can be used to determine indium in tin foil and lead excavation sample with satisfactory results.

    利用上述反应拟定了测定方法,经过适当处理,用于锡箔中微量铟的测定。

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  • The country is rich in minerals such as bauxite, iron ore, lead, gold, precious stones, tin, chromate, anthracite, granite, marble, clay, white sand and graphite.

    这个国家拥有丰富的矿产铝土矿铁矿石黄金宝石铬酸盐无烟煤花岗岩大理石粘土石墨。

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  • Lead, tin and tin-lead alloy electroplating technologies using these two products are introduced.

    介绍了采用两种产品电镀铅-合金工艺。

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  • PV Ribbon, TUI oxygen-free copper belt high purity 99.99%, smooth, brilliant, cleaning, plated by dipping with tin and lead with different chemicals compositions.

    涂锡是由纯度达99.99%的TUI无氧铜材制成,产品表面光滑、平整,色泽均匀。在铜线表面敷了以及其他化合物

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  • The problem of phase separation in lead tin fluorophosphate glass had been solved, and a relatively stable glass compositions had been designed.

    解决了磷酸盐玻璃存在问题设计了好的玻璃组分

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  • We have determined tin and lead contents in tin solder using the XRF fundamental parameter method without standard sample in this paper.

    本文标样的情况下,X射线荧光基本参数测定焊锡中的含量

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  • We have determined tin and lead contents in tin solder using the XRF fundamental parameter method without standard sample in this paper.

    本文标样的情况下,X射线荧光基本参数测定焊锡中的含量

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