petroleum ether

基本解释

• [油气] 石油醚；石油精

英汉例句

双语例句

• The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
  类胡萝卜素和石油醚提取物含量在陈化三个月时降低，之后上升。
• Overview: The Division Lanti Vanilla extract raisins produced mainly in Xinjiang, as the raw material obtained by petroleum ether extraction.
  概述：本司葡萄干萃取物主要采用新疆产的葡萄干为原材料，通过石油醚萃取制得。
• 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：本司岩蔷薇浸膏主要采用中国浙江地区生长的岩蔷薇为原材料，通过石油醚提取制得浸膏。

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词组短语

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 石油醚中绿麦隆溶液标准物质
• Isodrin in Petroleum ether 石油醚中异狄氏剂溶液标准物质

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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

医药科学

• 石油醚

  Results showed that L. sinense Hemsl is the most effective and its active part is in the petroleum ether-extract.
  结果表明:华火绒草的降血糖活性最强,其有效部位为石油醚提取物。

  化学

• 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.
  郁金：采用硅胶G板，以石油醚—乙酸乙酯（9：1）为展开剂，显色剂为5％磷钼酸。

  能源科学技术

• 石油醚
• 石油精

生物学

• 石油醚