- 重点词汇
- 麻黄碱
ephedrine
- 提取
draw; abstract; extract; distill; take out; cream off; withdraw; derive; recover; extraction; abstraction; extractive
- 方法
method; way; means; manner; road; avenue; gateway; route; measure; approach; mode; system; channel; medium; methodology; formula; prescription; recipe; technique; tool; device; instrument; mechanism; mechanic; tack; line; view; lever; technical