Pyrethrum flower

英 [paɪˈriːθrəm ˈflaʊə(r)]

美 [paɪˈriːθrəm ˈflaʊər]

网络除虫菊花

Extracted pyrethrins from pyrethrum dried flower by super critical CO2.
采用超临界CO2萃取除虫菊中有效成分除虫菊酯。
The Use of the Vacum Drying in the Drying of Pyrethrum Flower
真空冻干技术在除虫菊鲜花干燥中的应用研究
Extracted pyrethrins from pyrethrum dried flower by super critical CO2. is a paste called oleoresin which isn't suitable to formulate insecticidal products either use in household or crops.
用超临界CO2从除虫菊干花中萃取的除虫菊素，这种膏状物不能直接用来加工或深加工杀虫产品。
The paper introduced the principle, the test conditions and the operation steps of dry-ing the pyrethrum flower;
本文主要介绍了除虫菊鲜花的真空冷冻干燥技术的原理、条件和操作步骤。
This paper reviews research pertaining to natural insecticidal pyrethrum, including the active ingredient in the pyrethrum flower, manufacture, formulation, toxicity, and research on control of agriculturally important insect pests.
综述了天然除虫菊的相关研究，包括除虫菊花的杀虫活性成分、制剂与加工、毒性及在农业害虫防治方面的研究。
Comparative Studies on the Development of Pyrethrum Flower Head Before and After Introduction
引种前后除虫菊花头生长发育的比较研究