采用先进的加氢精制法生产的石蜡占85％左右，其中的关键技术是催化剂。
The output of paraffin products turned out by using the advanced hydrofining process made up 85% of the total, and the key technology is the catalysts.
采用先进的加氢精制法生产的石蜡占85％左右，其中的关键技术是催化剂。
The output of paraffin products turned out by using the advanced hydrofining process made up 85% of the total, and the key technology is the catalysts.
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