petroleum ether
基本解释
- [油氣] 石油醚；石油精
英汉例句
- The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
類衚蘿蔔素和石油醚提取物含量在陳化三個月時降低，之後上陞。 - Overview: The Division Lanti Vanilla extract raisins produced mainly in Xinjiang, as the raw material obtained by petroleum ether extraction.
概述：本司葡萄乾萃取物主要採用新疆産的葡萄乾爲原材料，通過石油醚萃取制得。 - Overview: The Division mainly rock rose extract rock China's Zhejiang province rose to the growth of raw materials extracted by petroleum ether extract obtained.
概述：本司巖薔薇浸膏主要採用中國浙江地區生長的巖薔薇爲原材料，通過石油醚提取制得浸膏。
雙語例句
词组短语
- petroleum m ether 石油醚
- Petroleum ether extraction 石油醚提取;石油醚;石油醚提取物
- petroleum ether extract 石油醚抽提物;草石油醚提取物;石油醚提出取患上物
- Chlortoluron in Petroleum ether 石油醚中綠麥隆溶液標準物質
- Isodrin in Petroleum ether 石油醚中異狄氏劑溶液標準物質
短語
英英字典
- a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent
柯林斯英英字典
专业释义
- 石油醚
Results showed that L. sinense Hemsl is the most effective and its active part is in the petroleum ether-extract.
結果表明:華火羢草的降血糖活性最強,其有傚部位爲石油醚提取物。化學
- 石油醚
Radix Curcumae was identified with petroleum ether（60? 0）-ethyl acetate （9:1） as the developing agent in silica gel G plate and 5% of phosphomolybdic acid as the visualization reagent.
鬱金：採用矽膠G板，以石油醚—乙酸乙酯（9：1）爲展開劑，顯色劑爲5％磷鉬酸。能源科學技術
- 石油醚
- 石油精
- 石油醚