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镀锌三价铬白色钝化液是由一种新的化学配方制得.
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The major advantages and disadvantages of trivalent chromium electroplating were introduced.
介绍了三价铬镀铬的主要优点与缺点.
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分析了六价铬电镀的危害及三价铬电镀的优点, 以及三价铬电镀取代六价铬电镀带来的效益.
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The plating process involves trivalent chrome passivation, and so is free from Cr 6.
在电镀过程涉及的三价铬钝化, 所以是免费的由铬.
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Chromium is widely distributed in nature, organisms mainly trivalent form of chromium.
铬在自然界中广泛分布, 生物体中主要以三价铬的形式存在.
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A trivalent metallic element of the rare earth group, it could occurs with yttrium.
稀土属三价金属元素, 可以与钇共生.
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One means of accomplishing this end is to add trivalent cations to the water.
实现这一目的的一种方法是将三价阳离子加入水中.
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The development history of trivalent chromium passivation for zinc plating was overviewed.
概述了镀锌三价铬钝化的发展历程.
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要应用三价铬的钝化,有书面指出的例外或规格更新时除外.
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She explains that health workers have been using what are called trivalent vaccines in some places.
她说有些地区的保健人员一直在使用所谓的三价疫苗.
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三价疫苗对于类型3病毒效果最差,类型1病毒效果稍好,对于类型2泽很有效.
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