单词 | two-phase three-wire system |
释义 | two-phase three-wire system [`tü ¦fāz `thrē ¦wīr `sis·tǝm] ELECTRICITY System of alternating-current supply comprising three conductors, between one of which (known as the common return) and each of the other two are maintained alternating difference of potential displaced in phase by one-quarter of a period with relation to each other. |
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