短语词组短語corrugated -sandwich boom 波紋狀夾層梁corrugated core sandwich panel 波紋夾芯板corrugated sandwich boom 波紋狀夾層梁corrugated sandwich web 波紋夾層腹板LASer -welded corrugated-CORe metallic sandwich panels 金屬激光銲接夾層板 返回 corrugated sandwich