“roller chain”概念、定义、翻译-科学时代

单词	roller chain
释义	矿业工程技术词汇手册 roller chain 滚子链
随便看	ounce（oz） ouricury oil Our Lady our time ouster ouster ouster of franchise ouster of jurisdiction out out outage outage outage outage outage outage frequency outage insurance outback outboard outboard outboard delivery outboard gun outboard motor outboard motor boat and outdoor motor policy outboard motor boat insurance

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。