词汇	longwall mining
释义	longwall mining ˈlɔŋwɔ:lˈmaɪnɪŋ长壁开采
随便看	silicon nitride passivation layer silicon nitride powder silicon nitride process silicon nitride substrate silicon nitride suspension silicon nitride thin film silicon nitride thin films silicon nitride-titanium nitride composite silicon nitride wheel silicon nitrification nanopartiele silicon-nitrogen polymer silicon npn mesa transistor silicon nutrition silicono silicono- silicon oil silicon-oil based ferrum magnetic liquid silicon-oil based magnetic liquid silicon-oil-based magnetic liquid silicon oil damper silicon oil fan silicon oil fan clutch Silicon oil or inert oil silicon oil porogens silicon oil spring damper