petroleum ether

基本解释

• [油氣] 石油醚；石油精

英汉例句

雙語例句

• 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。

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词组短语

短語

• 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

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英英字典

柯林斯英英字典

• a volatile mixture of the higher alkane hydrocarbons, obtained as a fraction of petroleum and used as a solvent

• petroleum ether剑桥字典
• petroleum ether柯林斯字典

专业释义

毉葯科學

• 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

生物學

• 石油醚