| 单词 | valve detector |
| 释义 | > as lemmasvalve detector valve detector n. ΚΠ 1915 J. C. Hawkhead & H. M. Dowsett Handbk. Wireless Telegraphists (ed. 2) 120 The valve detector is used with various circuits. 1926 R. W. Hutchinson First Course Wireless 201 All these are also used in conjunction with a valve detector. < as lemmas |
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