CALCULATE THE EQUIVALENT AREA OF OVERLYING STRATA BED-SEPARATED FISSURES BEFORE AND AFTER RUPTURE OF THE KEY STRATUM是什么意思_CALCULATE THE EQUIVALENT AREA OF OVERLYING STRATA BED-SEPARATED FISSURES BEFORE AND AFTER RUPTURE OF THE KEY STRATUM在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句