You can see them at every corner of the street. When you need help they will serve to you. As a safety protector, they hold responsbility everyday whatever the weather is.
他们在街头的每个角落。当你需要帮助的时候，他们会为你提供帮助。作为一个安全守卫者他们无论天气怎样天天监守岗位。
This paper expounds the necessity of erecting the electrical leakage protector in the houses, and makes analysis on some wrong opinions about the safety in power usage in the houses.
阐述了住宅安装漏电保护器的必要性，并对住宅安全用电中存在的某些错误观点进行了剖析。
The selection of the fire protector is the problem faced in engineering design and production safety in the plants dealing with petrochemical material, petroleum, natural gas and combustible gas.
阻火器的选用是石油化工厂、石油和天然气工厂、有可燃性气体的工厂生产安全保护和工程设计中常遇到并需解决的问题。
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