常見例句雙語例句Non-mining fracture of shaft-lining is a new style of engineering geological hazard.煤礦立井井筒非采動(dòng)破裂是一種新型工程地質(zhì)災(zāi)害。Stress on shaft-lining constructed by freezing process during, shaft sinking, after thawing and in years of service is analyzed.本文闡述了凍結(jié)施工立井井壁在井筒施工期間、凍結(jié)壁解凍后和礦井投產(chǎn)后的受力情況。Improved KNN algorithm by using the combination technology, and applied it to the forecast of non-mining fracture of shaft-lining of mine.利用組合技術(shù)對(duì)KNN算法進(jìn)行改進(jìn)，并將其應(yīng)用于煤礦立井井筒非采動(dòng)破裂的預(yù)測(cè)。 返回 shaft lining