Even attempts by the Organisation of the Petroleum Exporting Countries to agree on production cuts have failed to halt its decline.
即使石油输出国组织(OPEC)力图一致减产也不能阻止它的价格下跌。
Because of complex components, the effects of C9 cuts to petroleum resin are unclear.
C9馏分由于成分组成相当复杂，其各成分对合成石油树脂影响的了解还十分有限。
Because of complex components, the effects of C9 cuts to petroleum resin are unclear.
C9馏分由于成分组成相当复杂，其各成分对合成石油树脂影响的了解还十分有限。
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