“gill cover”的概念、定义、翻译、参考文献-科学参考

单词	gill cover
释义	gill cover [`gil kǝv·ǝr] ^{VERTEBRATE ZOOLOGY} The fold of skin providing external protection for the gill apparatus of most fishes; it may be stiffened by bony plates and covered with scales.
随便看	position control position correction position correction grid position dialing position doubtful positioned weld position effect position error position finder position finding position firing position fixing position indicator positioning positioning action positioning band positioning time position line position operator position pulse position report position representation position sensor position telemetering position transducer

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。