“floor of coal seam”的概念、定义、翻译、参考文献-科学参考

单词	floor of coal seam
释义	floor of coal seam Encyclopedia 理学煤炭地质勘查释 floor of coal seam煤层底板在正常顺序的含煤岩系剖面中，直接伏于煤层下面的岩石。
随便看	light sensitive diode light sensitive index of crop light sensitive material light sensitivity light sensor light shape design light shield light shift light shines upward or downward light show lightshow light signal Light Snow light snow on a fishing village Light Society light source light source color light sources for photochemistry light sources for photography light species light spectrum light splitter light spot light spot at the beam lightspot galvanometer

科学参考收录了854744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。