在回应，积极进取的化学品公司已加强了与东道国的替代溶剂，包括液体二氧化碳，有机硅，丙烯乙二醇醚，并改善了碳氢化合物。
In response, enterprising chemical companies have stepped up with a host of alternative solvents, including liquid carbon dioxide, silicones, propylene glycol ethers, and improved hydrocarbons.
液体二氧化碳的取得，作为副产品的某些工业生产过程可结合有机硅创造了另一种有效，但环保安全的干洗方法。
Liquid carbon dioxide obtained as a byproduct of certain industrial processes can be combined with silicone to create another effective, yet environmentally-safe dry cleaning method.
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