“twenty-nine feature”的概念、定义、翻译、参考文献-科学参考

单词	twenty-nine feature
释义	twenty-nine feature [¦twen·tē¦nīn `fē·chǝr] ^{COMPUTER SCIENCE} A device used on some punched-card machines to represent values from 0 through 29 by a maximum of two punches on a single column; x and y punches represent 10 and 20, and these are added to punches in positions 0 through 9.
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