?波纹管式折叠
... concentrator 浓缩器 concertina fold 波纹管式折叠，（纸板）手风琴式折叠 concora crush 平压 ...
?风琴折
... Concertina fold风琴折 Over and back fold扇形折 Zigzag fold之字折 ...
?手风琴形褶皱
... 手风琴式折叠 accordion folding 手风琴式折门 concertina door 手风琴形褶皱 concertina fold ...
?棱角褶皱
棱角褶皱
It was supposed to be a convertible, but the concertina metal bits that supported the canvas top were too rusted to fold back.
NEWYORKER: Hand on the Shoulder
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。