| 单词 | sapphire needle |
| 释义 | > as lemmassapphire needle sapphire needle n. ΚΠ 1940 Chambers's Techn. Dict. 740/1 Sapphire needle. 1943 Gramophone Dec. 107/2 In the last two years of manufacture of radiograms in this country practically all of them came thru with sapphire needles as standard equipment. < as lemmas |
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