It's worth noting that echinacea shouldn't be used for preventing a cold, but rather just for shortening the duration of cold symptoms.
2
经提取、过滤、浓缩、复方试验和糖果制造工艺制成含有紫锥菊和其它几种中草药浸提物的功能性糖果。
A functional candy containing the ingredients from Echinacea purpurea and some Chinese herbs was prepared by extraction, filtration, concentration, formulation, and candy-making process.
3
介绍了双锥回转真空干燥机的一种改良型机种——气提式双锥干燥机。
The stripping double cone dryer, an improved double cone rotating vacuum dryer, was presented.