The GC-MS analysis also shows a declination of heavy normal alkane in the degraded oil.

通过气相色谱分析，发现原油中烷烃组分发生变化，正构烷烃碳数分布曲线向轻组份方向移动。

youdao

In Indonesia this would mean putting palm-oil plantations not on forest land but on degraded land, of which it has perhaps 40m hectares available.

在印尼，这将意味着将油棕榈树种植园建立在退化土地，而非林地之上，该国可能拥有4000万公顷可用退化土地。

youdao

Mineral oil based quenching oil is not a green quenchant because it produces hazardous substance during service and wasted oil is difficult to be degraded.

矿物油基淬火油在使用中会产生有害物质，且废油难以降解，不属于绿色淬火介质。

youdao

In Indonesia this would mean putting palm-oil plantations not on forest land but on degraded land, of which it has perhaps 40m hectares available.

ECONOMIST: Tropical forests�� best hope

Prior to the "Special Period" Cuba had been a heavy user of oil-based chemical fertilizers, and much of the land was heavily degraded, requiring years of careful manuring to restore fertility.

CNN: Can the West cultivate ideas from Cuba's 'Special Period'?