片帮 meaning in Chinese

spalling rib

Study on influence factors of rib fall of coal wall in mining workface
采煤工作面煤壁片帮影响因素研究
Side falling accident
片帮事故
Control of tailentry rib spalling in the neighborhood of district sublevel under mining - induced pressure
采动压力下相邻区段回风巷道片帮控制
The preventive technology of section and wall caving in short distance broken roof comprehensive working face
近距离破碎顶板综采面片帮冒顶治理技术
Fault tree analysis for collapse of roadways with fractured surrounding rock and high tectonic stress in jinchuan mine no
金川二矿区不良岩层采场巷道片帮冒顶事故树分析