| 单词 | elv |
| 释义 | > as lemmasELV ELV n. extra or extremely low voltage; (a) n. voltage that is much lower than a usual or standard voltage; (b) adj. of, relating to, or characterized by such a voltage; designed to produce, carry, or operate at such a voltage. ΚΠ 1953 W. J. C. Speller Airframe Struct. & Controls 255 Extra low voltage (E.L.V.) in which the nominal voltage does not exceed 30 V. 1957 Proc. Inst. Electr. Engineers 104 250/2 For the amateur grower, caution would still indicate the e.l.v. transformer-fed bare wires as the ideal. 1974 M. Neidle Electr. Installations & Regulations vii. 40 Multichannel trunking is necessary for circuits supplied by extra-low voltage (ELV), low voltage (LV) and medium voltage (MV). 2017 K. Smith Get Qualified vii. 55 ELV systems operate at voltages not exceeding 50 V AC or 120 V DC. < as lemmas |
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