常見例句Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured. 針對(duì)金屬前探支護(hù)在架棚及錨網(wǎng)支護(hù)巷道中的安全作用進(jìn)行了全麪分析,提出了改進(jìn)方案和存在問題,確保了金屬前探支護(hù)的安全作用。A Brief Talk on Safety Effective of Metal Forepole Supporting in Beam and Bolting with wire mesh Roadway 金屬前探支護(hù)在架棚及錨網(wǎng)支護(hù)巷道中的作用 返回 forepole