词汇	roof broken roadway
释义	roof broken roadway 顶板破碎巷道
随便看	silica-gel grease silica gel gum silica gel gun silica gel H Silica geli implant Silica gel implant silica gel impregnated glass fibers silica gel leak detector silica gel-lithium chloride composite desiccant silica gel load silica gel loaded with zirconium oxide silica gel membrane silica gelmodel silica gel/molecular sieve composite silica gel/molecular sieve composites silica gel nebelfrost silicagel percolation silica gel percolation silica-gel percolation silicagel plate silica gel plate silica-gel plate Silica gel plates 60 F254 silicagel-polyamine resin silicagel powder