sandwichingn.夹层铺料sandwichn.三明治vt.插入；夹在中间sandwich laminated shell夹芯层合壳sandwich laminated plate夹芯层合板Sandwich Way Did They Go三明治的方式sandwich rolling process复合轧制法sandwich panel structure三明治板结构sandwich type wall panel夹心墙板sandwich bearing bracket叠合板托sandwich course placement工读交替制学生劳动安排Sandwich-type structure三明治结构sandwich-like structure[计] 多层结构