裂;Sheets of postage stamps are perforated.
一张张的邮票都打过接缝孔。
,
…
打眼纸张等)打齿孔〔孔眼线〕Sheets of postage stamps are perforated.
一张张的邮票都打过接缝孔。
The insufficiency of perforating veins is the main cause resulting in the recurrence of varicose veins after varicotomy in lower extremities.
交通静脉功能不全是导致下肢静脉曲张术后复发的主要
。
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