目的探讨三孔法腹腔镜阑尾切除术的应用。
Objective To invastigat the use of laparoscopic appendicectomy by three hole method.
键盘旁边有一个三角形的孔。
标注出对面支柱的孔洞位置，并打钻出三个孔。
Mark location of the holes for the opposite leg and drill three more holes.
铁门没有把手，门边的墙上也有一个三角形的钥匙孔。
The door had nohandle, but on the wall beside it was another triangular keyhole.
三种小孔在相对应的孔内位置上，换热增强差别亦很大。
The enhancement of heat transfer varies greatly in the same position of three different holes.
适合三通四通管件侧孔的预胀型加工。
Suitable for side expansion processing of Tee pipe fitting and Cross pipe fitting.
基于渐进失效分析方法，建立了带孔的三维有限元模型。
Based on progressive failure analysis a 3d finite element model with a hole is built.
基于渐进失效分析方法，建立了带孔的三维有限元模型。
Based on progressive failure analysis a 3d finite element model with a hole is built.
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