单词：light petroleum
light petroleum的用法和样例：
例句
- Its allelochemicals are mainly located in petroleum extract and the methanol eluent of the petroleum extract absorbed in activated charcoal.它的化学互感物质主要集中于石油醚提取物及石油醚提取物吸附于活性炭后的甲醇洗脱物中。
- Study on Chemical Components of Petroleum Ether Fraction of Alcohol Extract from the Leaves of Cunninghamia lanceolata Hook.杉木叶醇提物中石油醚溶解组分的化学成分分析。
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