| 单词 | three-position |
| 释义 | > as lemmasthree-position three-position adj. ΚΠ 1921 Daily Mail Year Bk. 112/2 The new..railway is..equipped with three-position signals. 1971 Gloss. Electrotechnical, Power Terms (B.S.I.) i. iii. 16 Three-position relay, a relay which has one unenergized and two energized conditions. < as lemmas |
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