·2,447,543篇论文数据,部分数据来源于NoteExpress
This paper describes a non - excavating construction machine - hydraulic perforator.
本文介绍了一种新型非开挖施工机械———液动穿孔机。
Perforation effect is seriously affected by the clearance between perforator and casing.
射孔枪与套管之间的间隙过大会影响射孔效果,太小容易出现工程事故。
Objective To introduce the new progress of perforator flaps as an new reconstruction technique.
目的了解皮瓣修复的新进展之一,即穿支皮瓣修复技术。
应用推荐