pyrethrum造句

1、Feverfew and pyrethrum are used in insecticides.
小白菊和红花除虫菊可用来制杀虫剂。

2、This article draws up the pyrethrum ester insecticide.
本品是拟除虫菊酯类杀虫剂。

3、made of dried flower heads of pyrethrum plants.
用除虫菊植物的干花头制成。