sandwichingn.夹层铺料sandwichn.三明治vt.插入；夹在中间sandwich wire antenna叠层线天线sandwiched transducer夹心换能器sandwich rolling mill叠层辊筒缩绒机sandwich-type panel夹心板sandwich like compact夹心状坯块sandwiches on a plate盘子上的三明治sandwich-rock slope层状岩质边坡sandwiched dielectric中间电介质层Sandwich plate theory三明治夹心理论sandwich construction夹心结构,夹层构造,夹层结构