1.
internal ribbed tube
内肋片管，内螺纹管
2.
Geometry Effects on Fluid Flow and Heat Transfer in Internal Helical Finned Tubes
内螺纹肋管几何参数对流动与传热的影响
3.
NPSI (American Standard Internal Straight Pipe Threads)
美国标准内直管螺纹
4.
reducing extension piece
异径内外螺纹管接头
5.
Tubing thread is available for API tubing threads and TM threads.
油管螺纹可采用API油管螺纹，或TM螺纹。
6.
Research on Spiral Finned Tubes in Application of the Low Temperature Reheater of 670t/h Coal-fired Boiler;
螺旋肋片管在670t/h锅炉低温再热器应用的研究
7.
pin-to-box pipe
阳螺纹-阳螺纹管子
8.
Situation of technological develop ment of welding internal -thread cop per tubes and seamless internal -thread coppertubes at home and abroad
国内外焊接内螺纹铜管与无缝内螺纹铜管的技术发展状况
9.
carbide square threading insert for petroleum pipe
石油管硬质合金方形螺纹刀片
10.
carbide triangular threading insert for petroleum pipe
石油管螺纹硬质合金三角形刀片
11.
carbide rectangular threading insert for petroleum pipe
石油管螺纹硬质合金长方形刀片
12.
Study on Measuring Instrument of Chaser for Cutting Steel Pipe Based on ARM & Linux;
基于ARM & Linux的管螺纹梳刀刀片检测仪
13.
Measuring Instrument of Chaser Based on ARM & DSP
基于ARM & DSP的管螺纹梳刀刀片检测仪
14.
Flow Boiling Heat Transfer and Flow Patterns in Three-Dimensional Micro-finned Helically Coiled Tube;
三维微肋螺旋管内流动沸腾传热与流型
15.
The Two-phase Flow and Boiling Heat Transfer in 3-D Micro-fin Helical Tube;
三维微肋螺旋管内的两相流动与沸腾传热
16.
NPT tapered tube thread gauges
NPT锥管螺纹量规
17.
Evaporation heat transfer in smooth and internal grooved tubes;
水平光管和内螺纹强化管内换热性能的研究
18.
carbide tool shank for petroleum pipe internal threading
石油管内螺纹硬质合金刀杆