building electricity
英
美
- 建筑电气
双语例句
- Most electrical outlets have a prong that connects to the earth ground, which is also usually wired into the building electrical system for safety.
绝大多数电源插座有一个地线端与大地相连,这通常是为保障建筑电气系统的安全而采取的安全措施。
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