活动平(行)垫片, 可调(整)平(行)垫铁的英文

adjustable parallel

• 活动:    move about; exerci ...
• 平:    flat; level; even; ...
• 行:    go
• 垫片:    pad; shim; back-up ...
• 可调:    adjustable
• 整:    whole; all; comple ...
• 垫铁:    parallels; sizing ...