“aperture card”的概念、定义、翻译、参考文献-科学参考

单词	aperture card
释义	aperture card [`ap·ǝ´chǝr ´kärd] ^{GRAPHIC ARTS} A card designed with apertures for mounting or inserting frames of microfilm.
随便看	setup time seven-eighths rule seven-tenths rule seven-thirds rule seventy-five-degree line severe combined immunodeficiency severe storm severe-storm observation severe weather severity factor Sevier orogeny sewage sewage disposal plant sewage farm sewage sludge sewage system sewage treatment sewer sewerage sewer gas sewing machine sewing press sex sexadecimal sexadecimal number system

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