perforate的过去式是什么?perforate的用法和例句

perforate有穿孔于,在…上打眼;(在纸张等上)打齿孔[孔眼线];等意思,那么你知道perforate的过去式是什么吗?今天一起来学习一下perforate的过去式以及perforate的用法和例句,希望对大家的学习有所帮助!perforate的过去式及其它时态per

perforate有穿孔于,在…上打眼;(在纸张等上)打齿孔[孔眼线];等意思,那么你知道perforate的过去式是什么吗?今天一起来学习一下perforate的过去式以及perforate的用法和例句,希望对大家的学习有所帮助!

perforate的过去式是什么?perforate的用法和例句

perforate的过去式及其它时态

perforate的过去式:perforated

perforate过去分词:perforated

perforate现在分词:perforating

perforate第三人称单数:perforates

perforate的用法和例句

1、Water - power deep penetrator system can perforate clearly drainage channel utilizing the principle of pressure jet cutting.

水力深穿透射孔系统利用高压水射流钻孔的方式实现深穿透射孔.

2、I refused to wear headphones because they can perforate your eardrums.

我不愿戴耳机,因为它可能会使鼓膜穿孔。

3、The Ascaris adults may perforate a suture line or cause a bile or pancreatic duct obstruction.

成虫可穿破缝线或引起胆管或胰腺管阻塞.

4、In communications, a manual switching system where incoming messages to the switching center perforate paper tape.

在通信技术中, 一种人工信息[报文]交换方法,即进入交换中心的(信息)报文用手工在纸带上穿孔.

5、In advanced stages the opaque corneas may ulcerate and even perforate.

在疾病后期,不透明的角膜可能产生溃疡,甚至穿孔.

6、This machine can perforate the sheets of stamps.

这台机器能在整版邮票上打孔.

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