The structure parameters and resistance characteristics of spiral pipe flow generator which generates spiral flow in circle pipe were analyzed and investigated.
对用于产生螺旋管流的圆管螺旋流起旋器的结构参数进行了分析，并对其阻力特性进行了理论分析和试验研究。
This paper explains background, feature, concept and system of multi-heat source circle pipe net and introduces design method to explore multi-heat source circle pipe net.
阐述了热源环状管网的出现背景、特点、概念及其系统组织，重点介绍了探索多热源环状管网设计方法。
According to researches on SRC column with steel circle pipe, the calculation methods of the axial compression ratio and load bearing capability of normal section are put forward.
根据对配有圆钢管的钢骨混凝土柱的研究结果，介绍了配有圆钢管的钢骨混凝土柱的轴压比、正截面承载力的设计计算方法，并给出了工程应用的实例。
The utility model relates to a compound pipeline processing tool, in particular to a multifunctional pipe full circle and chamfer device, which comprises a polygonal main body.
本实用新型涉及一种复合管道加工工具，具体地说是一种管材多 功能整圆倒角器。
The invariablenes condition of circle girth of the join-line end of the main pipe was set up and the join-lines on Y-tee to be ellipse was made certain.
建立了圆柱分支管y型三通的主管相贯线处的周长不变的条件，确定了相贯线为椭圆。
There is no experience for DN2000 arc pipe in circle roof of service building, so it is one of difficulties in the project.
服务楼环形屋面DN2000冷却水圆弧管道施工没有经验可借鉴，是施工难点。
May circle the system in the vacuum tubular resistance furnace body installment by the multi-layered copper pipe the horizontal field winding, must let water through cooling.
可在真空管式电阻炉体安装由多层铜管绕制的横磁线圈，需通水冷却。
May circle the system in the vacuum tubular resistance furnace body installment by the multi-layered copper pipe the horizontal field winding, must let water through cooling.
可在真空管式电阻炉体安装由多层铜管绕制的横磁线圈，需通水冷却。
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