And those from the tar sands could triple in the next decade, as more oil is extracted by steam-based methods.
随着越来越多的油采用蒸汽底驱的工艺进行提取,未来十年内在油砂开采过程中排放的碳可能会增加3倍。
2
The essential oil from Rabdosia nervosa seeds was extracted by steam distillation.
水蒸汽蒸馏法从显脉香茶菜籽中提取挥发油。
3
The essential oils of leaves from Eucalyptus camaldulensis and Eucalyptus benthami were extracted by steam distillation and their chemical constituents were determined by GC-MS method.