短語詞組短語external heating surface 外受熱面external boll surface lethe 外球面車床external vibrator surface vibrator 表面振搗器external spherical surface 外球面external wall surface decoration 外墻飾面external -surface quality 外表面質(zhì)量external wall surface 外墻表面external sight surface 外可視面external filtration surface 外濾面 返回 external surface