| 摘要 |
An electric plug includes a receptacle, two conductor blades received in the receptacle for coupling to an electric cable, a casing, and two prongs engaged in the casing, and rotatably coupled to the conductor blades respectively, to rotatably couple the casing to the receptacle, and to allow the casing to be rotated relative to the receptacle. For example, each of the conductor blades includes an orifice and each of the prongs includes an axle rotatably engaged into the orifices of the conductor blades, to rotatably couple the prongs to the conductor blades respectively. The casing may further include a prong for grounding purposes.
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