By microwave irradiation, the citral was obtained from Litea cubeba fruits, the yield was risen in average 36.5% than by traditional distillation in a current of steam.
采用微波辐照技术从山苍子中提取制备柠檬醛，使山苍子精油的提取率较传统的直接水蒸气蒸馏法平均提高36.5%以上。
Scottish chemist and industrialist who showed that low-temperature distillation of shale could yield substantial commercial quantities of paraffin oil and solid paraffin wax.
苏格兰化学家、实业家。他发现低温蒸馏页岩可以产生丰富的商用石蜡油和固体石蜡。
Ethylene distillation column is very important in olefin plant because it directly affects the quality and yield of ethylene.
乙烯精馏塔直接分离出产品乙烯，该塔控制的好坏直接影响产乙烯的产品质量和收率。
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