The safetytechnicalmeasures against explosion whistle happened on exhaust pipes during the running of vacuum pumps in pharmaceutical enterprises are discussest.
着重论述了在制药企业中真空泵运转过程中排气管发生爆鸣现象的安全技术控制措施。
2
In this paper, the basis, technical essentials, safetymeasures and practical effect using millisecond blasting technique at holing and blasting face of coal mines are introduced.