变厚度夹层环形板
annular sandwich plate with variable thickness
等强度环形板
Equi—strengh annular plates
环形隔振器
ring-like isolator
ring-like vibration isolator
环形形变光栅
toroidally-deformed grating
矩形环形复合感应器
inductor of rectangle-cycle multiplex structure
板形板厚综合控制
integrated control of strip flatness and thickness
combined shape and gauge control
纤维板隔板
fiber wallboard partition