Tetrachloride carbon (CTC) is an ozone depleting substance (ODS). It is mainly used as feedstock of chlorofluorocarbons (CFC), chemical process agent and cleaning solvent.

四氯化碳(CTC)是一种破坏臭氧层的物质(ods)，主要用作氟氯烃(氟里昂)的生产原料、化工过程助剂和清洗剂。

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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。

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To describe complete process of chemical cleaning to heavily-polluted reverse osmosis membrane. The most effective cleaning agent and the best condition were selected.

叙述严重污染的反渗透膜的化学清洗全过程。提出了各清洗步骤的最有效清洗药剂和最佳清洗条件。

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In January, Craig Williams, executive director of the Chemical Weapons Working Group based in Berea, Kentucky, insisted that the arsenal's stockpile was a prime candidate for neutralisation, a process planned for bulk chemical-agent stockpiles at the sites in Maryland and Indiana.

ECONOMIST: Pine Bluff prepares for disposal