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- DEA法DEA
- 评价采选作业辅助材料利用的DEA法DEA Method for Evaluating the Auxliary Mate-rials of Mining and Benefication
- 法law
- 无法unable
- 用法usage
- 吗啉的生产方法主要有二乙醇胺(DEA)浓酸脱水环化法和二甘醇(DEG)氨解脱水环化法，DEA法原料价格高，DEG法催化剂性能不稳定、活性低。There are mainly two methods to synthesize morpholine, cyclodehydration of diethanol amine (DBA) with sulfuric acid and cyclocondensation of diethylene glycol(DEG) with NHs in the presence of catalyst.
- 说法statement
- 输入法input method
- 除法division
- 分析法analytical method
- 商法commercial law
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- 宾夕法尼亚Pennsylvania
- 读法pronunciation
- 法轮功Falun Gong Cult
- 法门method
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- 玩法playing method
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