“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	efficient representation efficient scheme efficient solution efficient statistic efficient test efficient utilization of ores efficient variable efficient variable set efficient water-saving irrigation Effie Awards efflorescence efflorescence relative humidity effluence hypothesis effluent effluent concentration limit effluent gases drive effluents monitoring effluvium efflux efflux attaching wall efflux respirator effort efforts to promote culture and education Efforts weekly effuser

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