ON BACK ANALYSIS OF LONG-TERM SHEAR STRENGTH OF NO.4-2 ROCK PILLAR IN THE NO.4 CAVERN OF LONGYOU CAVERNS是什么意思_ON BACK ANALYSIS OF LONG-TERM SHEAR STRENGTH OF NO.4-2 ROCK PILLAR IN THE NO.4 CAVERN OF LONGYOU CAVERNS在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句