| 单词 | spark telegraph |
| 释义 | > as lemmasspark telegraph spark telegraph n. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telegraphy > telegraph > [noun] > types of > radio-telegraphs wireless telegraph1895 Marconigraph1902 radio-telegraph1903 radiograph1904 spark telegraph1934 rig1935 radioteletype1939 RT1941 1934 A. L. Albert Electr. Communication xv. 426/1 (caption) The generation of damped waves with a spark telegraph set. < as lemmas |
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