“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 窗孔卡片穿孔卡方孔卡
随便看	turn-back turnback turn back flow turn barrel turn bench turn-broaching machine turn buckle turnbuckle turnbuckle screw turn by banking turncap turn circle radius turn control turn controller turn coordination turn creel turn down turn-down lamp turndown ratio turn-down ratio turn down rims turned bolt turned finish turned groove turned hardening

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。