| 单词 | pen |
| 释义 | pen [pen] ENGINEERING 1. A small place for confinement, storage, or protection. 2. A device for writing with ink. INVERTEBRATE ZOOLOGY The inner horny, feather-shaped, chitnous shell of a squid. Also known as gladius. |
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科学参考收录了103327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。