Some products can have "traces" of thiomersal when the chemical is used during the production process as an antibacterial agent, which is later removed during the purification process.
如果在生产过程中使用硫柳汞作为抗菌剂，然后在净化过程中清除该化学品，有些制品就可有微量硫柳汞。
Based on different physical and chemical properties of components in synthetic rod, a new purification process for synthetic diamond by gas phase oxidation method is proposed.
根据人造金刚石合成棒中各组分不同的物理、化学性质，提出了一种采用气相氧化法提纯人造金刚石的新工艺。
Mainly used for the purification of process water and solutions in food and drinks, electronic, pharmaceutical, petroleum and chemical industries.
主要用于食品饮料工业、电子工业、制药工业、石油及化学工业等部门的工艺用水及溶液净化。
Mainly used for the purification of process water and solutions in food and drinks, electronic, pharmaceutical, chemical industries.
主要用于食品饮料工业、电子工业、制药工业、化学工业等部门的工艺用水及溶液净化。
High purity methanol is one of the very important solvents for chemical industry and microelectronic industry. Dehydration is the key process in the purification of industrial methanol.
高纯甲醇是一种大量应用于化学及微电子工业领域中的重要溶剂，脱水是工业甲醇纯化精制过程中的一个关键问题。
The fermentative process of xylitol is an interesting alternative to conventional chemical process, since it does not require initial xylose purification.
发酵工艺生产木糖醇无需木糖的纯化步骤，是取代化学合成法的一条可行工艺路线。
The fermentative process of producing xylitol is an better alternative than conventional chemical process, since it does not require initial xylose purification.
发酵工艺生产木糖醇无需木糖的纯化步骤，是取代化学合成法的一条可行工艺路线。
The fermentative process of producing xylitol is an better alternative than conventional chemical process, since it does not require initial xylose purification.
发酵工艺生产木糖醇无需木糖的纯化步骤，是取代化学合成法的一条可行工艺路线。
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