perforated

perforated是什么意思，perforated怎么读 语音:
英音  ['pɜ:fəreɪtɪd] 
美音  [ˈpɚfəˌretɪd] 

• 基本解释

v. 穿孔于，在…上打眼( perforate的过去式和过去分词 )；（在纸张等上）打齿孔[孔眼线]

• 速记技巧

• 中文词源

• 双语例句

用作形容词(adj.)

1. Sheets of postage stamps are perforated.
   一张张的邮票都打过接缝孔。
2. It is said that the patient had perforated ulcers.
   据说该病人以前有过溃疡穿孔。
3. I was standing on the surface of a perforated sphere.
   我站在地球表面,它千疮百孔。
4. The samples are collected in perforated polyethylene bags.
   样品采集在有孔的聚乙稀袋中。
5. The new winter ventilation system consisted of a perforated plastic tube.
   新的冬季通风系统由带孔的塑料管组成。

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