鼻小柱支撑移植物
support graft of the nasal columella
长壁留煤柱支撑法
longwall remaining coal pillars support
长壁留煤柱支撑法开采
longwall remaining coal pillars support mining
附加支撑柱刚度比
the additional column
the additional column stiffness ratio
临时转向柱支撑
temporary steering column support
四柱支撑掩护式液压支架
four-leg shield hydraulic stent