“photoelectric reader”的概念、定义、翻译、参考文献-科学参考

单词	photoelectric reader
释义	photoelectric reader [¦fōd·ō·i`lek·trik `rēd·ǝr] ^{COMPUTER SCIENCE} A device for reading information stored on paper tape or cards; data are read by sensing the presence or absence of holes.
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