Application of hydraulic reaming in the prevention and control of mine gas;
水力扩孔技术在瓦斯防治中的应用
taper wall core shell
带内锥面的金刚石扩孔器
Design and Clinical Application of Hole Reamer with Depth Restrictor for Interlocking Intramedullary Nail in Treatment of Femoral Fractures
具有限深套管的股骨带锁髓内钉尾端扩孔器的设计与临床应用
Design and Clinical Application of Hole Reamer for Interlocking Intramedullary Nail in Treatment of Femoral Fractures
新型股骨带锁髓内钉近端钉尾扩孔器的设计与临床应用
circular perforated air diffuser
环形穿孔空气扩散器
A tapered steel pin for enlarging and aligning holes
打孔器用来扩大或调整孔洞的尖钢针
The Contrast of Simple Expanded-muffler with Large Porosity Perforated Muffler
简单扩张式消声器与穿孔管消声器对比研究
Research progress of fine porous diffusor in gas-liquid mass transfer
微孔扩散器在气液传质过程中的研究进展
Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill
10MN立式穿(扩)孔机大直径扩孔头的改造
diffuser performance
扩压器性能扩散器性能
diffuser assembly
扩压器总成扩散器总成
Point-to-point systems are suitable for hole-machining operations such as drilling, countersinking, counterboring, reaming,Boring, and tapping.
点位系统适用于钻孔、锪孔、扩孔、铰孔、镗孔、攻丝等孔加工。
To form, shape, taper, or enlarge(a hole) with or as if with a reamer.
扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）
EFEAL Extended Field Elliptical Aperture Lens
可扩展扫描椭圆孔镜头
counterbore with guide
有导柱的平底扩充孔钻
the act of expanding an aperture.
一个孔穴扩大的行为。
To use a punch or use a punch on.
使用打孔器或用打孔器在…上打孔
To shape or enlarge(a hole)with a tapered, serrated tool.
凿孔扩大用带齿的尖的工具钻或扩大（孔）
Any of various tools used to shape or enlarge holes.
扩孔钻一种用于整造或扩大孔膛的工具