1.
The Pivotal Technology and Academic Analysis of NC on Noncircular Cross Section Roller;
环状孔轧辊数控加工机床关键技术和理论分析
2.
The Design and Application of NC Feeding System on Noncircular Cross Section Roller;
环状孔变截面轧辊数控加工进给系统的设计及应用研究
3.
reinforcing looped stitch for edges, as around a buttonhole.
边上的加固性的环状缝法，如纽扣孔周围。
4.
STUDY ON HEAT TRANSFER PERFORMANCE FOR TUBE INSERTED WITH RING POROUS AND ITS FIELD SYNERGY ANALYSIS
圆管内插入环状多孔介质的换热性能研究及其场协同分析
5.
The state or property of being porous.
有孔性，多孔性有孔或多孔的状态或特性
6.
Shaped like or forming a ring.
环状的,轮状的形状象环或形成环状
7.
Hole Clearing by air-lift reverse circulation method in bored piles
冲(钻)孔灌注桩气举反循环清孔工艺
8.
circular perforated air diffuser
环形穿孔空气扩散器
9.
penannular adj.
近似轮状[环状]的
10.
SHAD Super Hole Accumulation Diode
超级孔状积累二极管
11.
multiple-peaked pore size distribution
多峰状孔隙大小分布
12.
reaming and deburring tube tool
铰孔和去毛刺管状刀具
13.
The end of the hole is hemispherical.
小孔端面成半球状。
14.
A ringlike structure, segment, or part.
环状物环状结构或部分
15.
multicellular glass in blocks, panels, plates, shells or similar forms
多孔玻璃,呈块状、板条状、平板状、壳状或类似形状
16.
small ear-ring (used to keep the hole in a pierced ear open )
（用以保持耳环孔不封口的）小耳环.
17.
The Parameters Optimization of the Reverse Circulation DTH Hammer and Studies on Its Drilling Technique;
全孔反循环潜孔锤参数优化及其钻进工艺研究
18.
Study on Annulus Pressure Distribution after Perforation of Composite Perforators
复合射孔器射孔后环空压力分布试验研究