http://www.pons.de/produkte/3-12-517841-X/（牛津大学出版社授权产品）
英语
西班牙语
perforation [美 ˌpərfəˈreɪʃ(ə)n, 英 ˌpəːfəˈreɪʃn] 名词
1. perforation C (hole):
2. perforation U:
在《PONS词典》中的词汇
英语
西班牙语
perforation [ˌpɜ:fərˈeɪʃən, 美 ˌpɜ:fəˈreɪ-] 名词
西班牙语
英语
在《PONS词典》中的词汇
英语
西班牙语
perforation [ˌpɜr·fə·ˈreɪ·ʃən] 名词
西班牙语
英语
单语范例（未经PONS编辑处理）
They consist of small diameter perforations, made from surface locations, in trenches, in wells or in galleries.
en.wikipedia.org Perforations or holes in the cards allowed component leads to project through to the next interconnection layer.
en.wikipedia.org More complex tracheids with valve-like perforations called bordered pits characterise the gymnosperms.
en.wikipedia.org It uses a very fine perforation of tiny pinholes, and is pre-scored along the perforations.
en.wikipedia.org The bags are available as singles for semi-automatic machines or as web bags, where the bags have perforations between each one.
en.wikipedia.org