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
安装偏心补偿
Eccentric compensation for installation
摆动偏心筛分器
oscillating and eccentric sifter
板梁偏心连接
eccentric connection of plate and beam
板坯中心偏析
central segregation of slab