pe---product evaluation
体育——产品评估
以上为机器翻译结果,长、整句建议使用 人工翻译 。
This paper introduces the derelopment and evaluation of PE-207 and CH-15 cleaning compositions, which have been applied in removing the fouling products of refinery oil product heat exchangers.
试制了PE-207型和CH-15型清洗剂,并用于清洗炼厂油品换热器的结垢,取得一定的济经效益。
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