“classification of coal mining roof”的概念、定义、翻译、参考文献-科学参考

单词	classification of coal mining roof
释义	classification of coal mining roof 煤矿顶板分级
随便看	solar tide solar time solar-topographic theory solar tower solar transition region solar turboelectric drive (STED) solar turboelectric power unit solar-type reaction solar-type star solar ultraviolet solar ultravioletimaging telescope solar ultraviolet radiation solar utilization solar watch solar water heater solar wind solar wind boundary solar wind geomagnetic field boundary solar X-ray solar X-ray astronomy solar X-ray flare solar X-ray irradiance solar year solar zenith angle solar zone refiner

科学参考收录了1248194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。