“junk ring”概念、定义、翻译-科学时代

单词	junk ring
释义	机械工程词汇手册 junk ring 活塞顶；密封环
随便看	disarmed mine disarming disarticulated burial disarticulation disassemble disassemble disassembler disassembler disassembler disassimilation disassimilation disassimilation disassociate disaster disaster caused by hail disaster caused by windstorm disaster film disaster film disaster film disaster-hit area disaster mitigation disaster of winds disaster plan disaster plan disaster planning

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

junk ring