Chromium is widely distributed in nature, organisms mainly trivalent form of chromium.
鉻在自然界中廣泛分布, 生物體中主要以三價鉻的形式存在.
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The development history of trivalent chromium passivation for zinc plating was overviewed.
概述了鍍鋅三價鉻鈍化的發展歷程.
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The major advantages and disadvantages of trivalent chromium electroplating were introduced.
介紹了三價鉻鍍鉻的主要優點與缺點.
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The history of trivalent chromium electroplating was looked back.
回顧了三價鉻鍍鉻的歷史.
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The trivalent vaccine against typetype 3 against type 1 type one and highly effective against typetype 2.
三價疫苗對于類型3病毒效果最差,類型1病毒效果稍好,對于類型2澤很有效.
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She explains that health workers have been using what are called trivalent vaccines in some places.
她說有些地區的保健人員一直在使用所謂的三價疫苗.
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One means of accomplishing this end is to add trivalent cations to the water.
實現這一目的的一種方法是將三價陽離子加入水中.
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The hazards of hexavalent chromium electroplating, and the benefits of trivalent chromium electroplating were analyzed.
分析了六價鉻電鍍的危害及三價鉻電鍍的優點, 以及三價鉻電鍍取代六價鉻電鍍帶來的效益.
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A trivalent metallic element of the rare earth group, it could occurs with yttrium.
稀土屬三價金屬元素, 可以與釔共生.
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" Trivalent chromium passivation shall be used unless written exception or specification update provided. "
要應用三價鉻的鈍化,有書面指出的例外或規格更新時除外.
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White passivating liquor trivalent chromium for zinc plating is prepared based on a new chemical formulation.
鍍鋅三價鉻白色鈍化液是由一種新的化學配方制得.
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The plating process involves trivalent chrome passivation, and so is free from Cr 6.
在電鍍過程涉及的三價鉻鈍化, 所以是免費的由鉻.
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