法兰取压偏心孔板
eccentric orifice with flange taps
飞轮壳中心孔偏摆
flywheel housing bore runout
飞轮壳中心孔偏摆检查
flywheel housing bore runout check
钻孔扩孔
bore hole drilling and enlarging
BQ型双偏心半球阀
BQ type double eccentric center half-ball Valve
D形偏心支撑
D-type eccentrically braced steel frame
D型偏心支撑
D-type eccentrically-braced steel frame
K形偏心支撑
K-eccentrically braced frame
K形偏心支撑钢框架
K-eccentrically braced steel frame
Y形偏心支撑
Y-eccentrically braced frame
Y型偏心支撑
Y-eccentrically braced
Y-eccentrically braced steel frames
Y型偏心支撑钢框架
Y-eccentrically braced steel frame