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词汇 imperforate
分类 英语词汇 英语翻译词典
释义

imperforate /ɪm'pɜːf(ə)rət//ɪm'pɝfəret/

英汉-汉英词典
adj. 无孔的,无齿孔的
词组 | 习惯用语
您要查找的是不是:
  • imperfect adj. 不完美的;有缺点的;未完善的
  • impersonate vt. 扮演 模仿, 假冒
  • impersonator n. 演员,模拟(名人等的)艺人
  • perforation n. 穿孔;贯穿 针孔;齿孔
  • perforate vt. 穿孔于,在…上打眼 (在纸张等上)打齿孔〔孔眼线〕
imperforate adj. 无孔的,闭锁的;无齿孔的
imperforated adj. 未穿孔的;闭锁的(等于imperforate); n. 无齿孔的邮票;
imperforate hymen [妇产] 处女膜闭锁; 无孔处女膜;
imperforate anus [外科] 肛门闭锁; 无谷道;
faked imperforate stamp 假无齿票

网络短语:
Imperforate jejunum 空肠闭锁
imperforate cervix 宫颈闭锁
hymen imperforate 无孔处女膜
anus imperforate 肛门闭锁
imperforate e 无孔
imperforate anu 不通肛
Imperforate Foraminifera 无细孔有孔虫目
imperforate punctum 闭锁点
中文百科

齿孔 Postage stamp separation

(重定向自Imperforate)

邮票的齿孔是指邮票周围的锯齿状孔洞,是在个别邮票尚未分离前,于邮票之间的空隙上打上的洞。早期的邮票并没有这样的设计,因此分割较不方便,到了1848年,爱尔兰人亨利·亚策尔(Henry Archer)发明了打孔机,1854年的时候,英国发行最早的有孔邮票。

英语百科

Postage stamp separation 齿孔

(重定向自Imperforate)
The Penny Black is imperforate.
Separation of imperforate stamps by scissors, knife or tearing often leads to uneven margins on the stamp as in this 1853 stamp of Van Diemen's Land.
Vertical pair of 1d red, from Plate 70, perforated with the Archer experimental roulette.
Perforated and imperforate versions of the same Austrian stamp of 1920.

For postage stamps, separation is the means by which individual stamps are made easily detachable from each other.

Methods of separation include:

近义、反义、联想词
近义词
adj.
uncut

反义词
n.
cut

联想词
perforated穿孔的;annular环形的,有环纹的;anus肛门;
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