| 单词 | valve heater |
| 释义 | > as lemmasvalve heater valve heater n. ΚΠ 1929 Radio Times 8 Nov. 443/3 Get the necessary output from a Regentone mains unit for A.C. valve heaters. 1960 Pract. Wireless 36 326/2 Commence wiring the valve heaters by taking a tightly twisted pair of insulated wires from V1 to V2. < as lemmas |
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