[油气]石油醚；石油精

petroleum engineer───石油工程师

petroleum jellies───凡士林（等于petrolatum）；矿油

petroleum engineers───石油工程师

petroleum jelly───凡士林（等于petrolatum）；矿油

ethyl ether───乙醚；[有化]二乙醚

petroleum───n.石油

petroleur───n.用火油纵火的男子

petroleuse───n.用石油放火的女子

petroleuses───n.用石油放火的女子

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 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。

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。

Compared the spectrogram , that the petroleum ether used as solvent is better than anther.───通过气相色谱分析的谱图比较, 发现石油醚的提取效果较好.

Portions of petroleum ether, n - butanol and water extracted from LEEs was much weaker on anticoagulant activity.───石油醚部位 、 正丁醇部位、水部位也有较弱抗凝活性.

ObjectiveTo investigate and compare the best extraction method by petroleum ether from Curcuma wenyujin Y . H.───目的探讨并比较石油醚回流提取温莪术粗粉和微纳米粉体挥发油的最佳工艺.