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- A method for the determination of six pyrethrins from natural pyrethrum extracts by capillary gas chromatography with FID detector was described. 研究了毛细管气相色谱法定量分析天然除虫菊提取液中6种酯的方法,FID检测,邻苯二甲酸二丁酯作为内标物。
- pyrethrum extract 除虫菊萃
- Such an extract in a solution of alcohol. 酒精提取物酒精溶液中的提取物
- He tried to extract his pole from the mud. 他试图用力将杆子从泥中拔出来。
- Pyrethrum cinerariaefolium Bocc. [医] 白花除虫菊，除虫菊
- Pyrethrum cinerariifolium (Trey.) Vis. 白花除虫菊
- It take a major operation to extract money from a minor poet. 要从小诗人那儿榨出钱来，得施行一次大手术。
- Data mining is to extract knowledge from information. 资料开采是从各种资讯中获得知识。
- Wider application of a pyrethrum, rotenone and tobacco, and so on. 广泛应用的有除虫菊、鱼藤和烟草等。
- Ice cream flavored with vanilla extract. 用香草精调味的冰淇淋。
- To evaluate the immune toxicity of natural pyrethrum. 目的检测天然除虫菊酯的免疫毒性。
- The insoluble portion of an extract. 提取物中不溶解的部分
- This article draws up the pyrethrum ester insecticide. 本品是拟除虫菊酯类杀虫剂。
- Wood ashes are leached to extract lye. 木炭被滤过以提取碱液。
- A short extract from a film or videotape. 剪辑从电影胶片或录相带剪出的片断
- The orders for the beef extract are falling off. 牛肉汁的定单正在减少。
- The tool to extract the comments is called javadoc. 用于提取注释的工具叫作javadoc。
- We can extract pleasure from a party . 我们可以从聚会中得到快乐。
- I could extract no information from him. 我从他那里一点儿消息也打听不出来。
- We can extract pleasure from a party. 我们可以从聚会中得到快乐。
