词汇	foam core
释义	foam core 泡沫芯层
随便看	balance counter balance count score card Balance counts score balance crane balance crank Balance crossbeam balance current balance cut-off saw balance cuts and fills balance cyclic reduction balance cylinder balance-cylinder balance cylinder cover balanced balanced 3-phase voltage balanced account balanced AC-DC amplifier balanced action balanced activity approach balanced addition balanced adjustment balanced aerial balanced against balanced against by balanced against with