短语词组短语Fabric preform 织物预成型preform binder 预成型粘合剂;预成型接合剂preform machine 预成型机preform moulding 预成型模塑Preform System 注塑系统preform structure 骨架结构preform wires 预制丝preform electrode 预成型电极deposition preform 沉积坯件 返回 preform