Since 1990, regulations concerning registration of electrical workers and contractors, the safety of electrical wiring, and the supply of safe household electrical products have come into effect in stages.

 
  • 自一九九零年起,有关电业工程人员及电业承办商注册、电力线路安全,以及供应安全家居电器产品的规牢垃已分阶段实施。
今日热词
目录 附录 查词历史