Because the electric and magnetic fields exist within the blasting area, the nonelectric initiation technology was used to avoid the effect of stray current, ensuring the safety of blasting operation.
由于爆区范围内存在较强的电场和磁场，采用了非电起爆技术，避免了杂散电流的影响，保证了爆破作业的安全。
The controlled blasting design of Benxi Civil Air Defence Building, operation and safety technical measure in complicated environment is introduced.
介绍本溪市人防办公楼基础开挖控制爆破设计、施工及在复杂环境下所采取的安全技术措施。
Rock blasting is the key process in water construction, and have a close relationship with operation of public facilities and property safety.
石方爆破是水利施工顺利开展的关键环节之一，关系公共设施正常运转及群众财产安全。
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