“调焦环”概念、定义、翻译-科学时代

单词	调焦环
释义	天文学词汇手册调焦环 focusing ring
随便看	water jet water jet water-jet air ejector water-jet arrester water jet assisted mining water-jet condenser water-jet cutting water jet drilling water jet driver water-jet fan water-jet loom water jet machining water jet method water-jet nozzle water-jet pump water jet pump water jet pump water jump water-laid rope water lance water layer water layer ghosting water leaching waterleaf water-leaf ornament

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。