perforation

[.pə:fə'reiʃən]

n.孔,穿孔

例句与用法：

A corrugated or perforated conducting plate in a storage battery.

极板网栅，蓄电池电极板蓄电池中呈波纹状或有孔的导电板

A detachable extension to the back of an envelope, having a perforated edge and special marketing information or an order form on it.

信尾信封背面可拆掉的附加部分，其上有打孔的边缘和特定的市场信息或订购单

In perforated continuous forms paper, the interval between cuts.

在穿孔的连续格式纸上，割线之间的间距。

Having no opening; not perforated.

不开口的，不穿孔的

词形变化：

形容词: perforable | 名词: perfora-tor | 动词过去式: perforated | 动词过去分词: perforated | 动词现在分词: perforating | 动词第三人称单数: perforates |

详细释义：

n.

1. 穿孔; 贯穿

2. 针孔; 齿孔