favorable如何贴切的翻译？（有语境）？ the reduced crude may then be processed by vacuum or steam distillation to separate the high-boiling lubricating oil fractions without the danger of decomposition,which occurs at high ( 350℃,660℉) temperatures. indeed,atmospheric distillation may be terminated with a lower boiling fraction (“cut”) if it is thought that vacuum or steam distillation will yield a better quality product or if the process appears to be economically more favorable. 常压渣油可能用真空蒸馏或蒸汽蒸馏来分离高沸占润滑油组分而不分解（温度大于350℃或660°f）。的确，当低沸点组分分离出来后，如果真空或蒸汽蒸馏将提高产品质量或者蒸馏过程更经济的时候，即可结束常压蒸馏而采用真空或蒸汽蒸馏。查看更多
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