英语词汇“type ball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	type ball
释义	type ball type ball A golf ball-sized element used in typewriters and low-speed teleprinters that contains all the print characters on its outside surface. The type ball was introduced with IBM's Selectric typewriter. See Selectric typewriter.
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