分析了集中药室爆破时，爆破冲击波和应力波对药室附近岩体的破碎过程及应力波在自由面的反射作用。
The paper analysed the process of smashing rock near a explosion source by shock wave and stress wave and the reflecting action of stress wave on the free face.
论述了硐室爆破的设计方案，药室布置，集中药包，条形药包，爆破参数选择，装药填塞和起爆网路等。
This article stresses on designing, arrangement of bore holes concentrated charges, bar charges, selection of blasting parameters, tamping and initiating circuits.
在现场进行了集中药包与分集药包硐室爆破的大量模拟试验。
A large number of simulation tests for chamber blasting with concentrated or sub-concentrated charges were carried out in a site.
介绍了中药制剂厂房洁净空调系统针对不定时开启局部除尘排风造成系统压差不能保证的解决方案；集中式多个子洁净空调系统操作室对洁廊相对负压的解决方案。
In cleaning air conditioner used in Chinese drug factory, if the local dust removing air discharge is not turned on in time, the differential pressure in the system cannot be kept.
介绍了中药制剂厂房洁净空调系统针对不定时开启局部除尘排风造成系统压差不能保证的解决方案；集中式多个子洁净空调系统操作室对洁廊相对负压的解决方案。
In cleaning air conditioner used in Chinese drug factory, if the local dust removing air discharge is not turned on in time, the differential pressure in the system cannot be kept.
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