Grounding wire must be reliably connected to the earth, or else the operator may be an electric shock hazard.
接地线必须可靠接于大地，否则操作人员可能有触电危险。
The mine electric leakage can not only cause the electric shock of the people but also some serious accidents such as the fire hazard, coal dust explosion, and gas explosion, etc.
煤矿井下漏电，不仅会引起人身触电，还会酿成火灾、煤尘及瓦斯爆炸等恶性事故。
The air conditioner must be earthed reliably otherwise it may result in electric shock or fire hazard.
空调器必须可靠接地，否则可能引起触电或火灾。
The air conditioner must be earthed reliably otherwise it may result in electric shock or fire hazard.
空调器必须可靠接地，否则可能引起触电或火灾。
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