The production principles, production methods and progress of benzyl chloride are introduced.
介绍氯化苄生产的原理、方法和技术进展。
The paper introduces the production method about which the 99.95% fine selenium would be made from crude selenium by distillation and its production principles.
介绍粗硒经过蒸馏法生产99.95%工业精硒的生产方法和生产原理。
Production principles of liquid chlorine and its process were introduced. The reasons of accidents happened in production and application process of liquid chlorine were analysed.
介绍了液氯的生产原理及工艺过程，分析了在液氯生产和使用过程中发生事故的原因。
Production principles of liquid chlorine and its process were introduced. The reasons of accidents happened in production and application process of liquid chlorine were analysed.
介绍了液氯的生产原理及工艺过程，分析了在液氯生产和使用过程中发生事故的原因。
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