“Johnson-Morgan system”的概念、定义、翻译、参考文献-科学参考

单词	Johnson-Morgan system
释义	Johnson-Morgan system [`jän·sǝn `mȯr·gǝn ´sis·tǝm] See <<UBV system>>
随便看	roof foundering roofing roofing copper roofing felt roofing granules roofing nail roofing putty roofing slate roof jack roof pendant roof stringer roof truss rookery room room acoustics room-and-pillar room conveyor room crosscut room noise room power rooseveltite rooster rooster tail root root canal

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。