管段接头是沉管隧道的重要环节。
将回弯头分解为直管段和回弯两部分。
目的测定大鼠颈动脉血管段的径向张力。
Objective To determine radial tension for rat carotid segment.
沉砂口直管段是水力旋流器的一个重要构件。
The straight tube of spigot is an important structural parameter of hydrocyclone.
根据河流宽度，穿越管道可能很长，需要多根管段。
This string of pipe may be very long, depending on the width of the crossing.
方法采用二氧化硫刺激法和气管段酚红法进行试验。
METHODS method of coughing stimulated by sulphur dioxide and method of phenol red were used.
在不可能安装较长的直管段情况下，可以来用导流叶片。
Straightening vanes can be used where long straight ways are not possible .
分别给出了不同入口条件下实验管段的流型图和压降图。
The flow pattern and pressure drop graphs are obtained from present experimental data.
在局部起旋管段内部进行数值模拟，考虑水流紊动效应的影响。
It has proceeded the numerical simulation in the inner of rotation-starting pipe and considered the influence of turbulence effect.
沉管隧道工程中的管段为大体积混凝土构件，结构形式较为复杂。
The pipe section of the immersed tunnel is the large-volume concrete structure, which is complicated in the structure shape.
介绍了四川北半环输气干线停输更换漏气管段方案实施过程及步骤。
The scenario on replacing the leaked gas pipeline and its implementation for north-loop line located at Sichuan is introduced.
用锯子或凿子一起切割固化混凝土管段以及水泥部分，形成奇形接头。
Cut cured concrete pipe sections with saw or chisel, and cement sections together to form odd shaped fittings.
详细介绍了PCCP限制性管段止推设计和铠装接头水压试验的情况。
This paper introduces in detail the thrust design and armored joint hydraulic test for PCCP restricted tubulation.
采用正反分析法建立了天然气管网管段阻抗系数优化反演的数学模型。
A pipe hydraulic resistance coefficient model for natural gas pipeline network is established based on positive and negative analytic approach.
水槽直管段为正方形，弯管段内侧弯面及外侧弯面是专门计算设计的。
The shapes of the curved walls of the bent section are designed according to theoretical analysis.
各管路或管段应配备膨胀室，减压阀或将压力释放到储气罐的爆破隔膜。
Therefore each line or line section shall have an expansion chamber a pressure relief valve or rupture disc discharging to a receiver.
在对汽车尾气系统进行建模时，把尾气系统分为尾气管段和催化转化器两部分。
When the automobile exhaust system is modeled, the exhaust system is divided into two parts-the exhaust pipe and the catalytic converter.
目的探讨经鼻内镜下视神经减压术治疗管段视神经损伤的可行性、技巧及优点。
Objective: To investigate the feasibility, techniques and advantages of the treatment of optic nerve injury by intranasal endoscopic surgery.
那么这条缝可以在车间焊接。在处理和安装熔接接头的成品管段时应特别小心。
But care shall be taken on fusion welded joints of fabricated spools during handling and installation.
同时根据二叉树的前序遍历结果匹配血管段，有效地提高了匹配的速度和准确度。
Vessel segments in two images are matched by the preorder traversal of the binary trees, and the method is proved fast and accurate.
以插图及表格形式论述了法兰、管段、三通、弯头和填料泄漏勘测的具体要求和数据。
The specific requirements and basic data for the flange, pipe-segment, tee, elbow, and stuffing box were expounded with the figures and lists.
通过解节点方程组的方法求解管网的管段流量和节点水压，并编制了相应的应用程序。
We can get the flow rate of pipelines and the hydraulic pressure of nodes by solving the equation sets of nodes, and corresponding application program is developed.
对反应堆失水事故条件下热管段内的两相流逆向流动过程进行了实验研究和理论分析。
Two phase countercurrent flow in reactor hot leg at loss of coolant accident is studied by experiment and analysis.
分析了沉管隧道管段连接方式对隧道动力特性的影响，研究了管段弹性连接减震效果；
The influence of the joint form was analyzed, and the damping effects of the elastic joint were studied.
对于不同的管道部件提出了相应的强度条件，确定了直管段及转角管段的应力验算方法。
Bring forward the strength conditions of the different pipe pars. Confirm the stress checking computations ways of the line pipes and corner pipes.
通过工程实例，详细介绍了蒸汽直埋管道的主要设计工艺、特殊管段的处理及施工技术。
With an example, presents in detail the main design technology, treatment of special pipe sections and construction technology.
期望通过此项研究，对今后类似的大型沉管隧道管段接头的试验、设计、施工有所帮助。
It is expected that the experiments may be helpful for tests, design and construction of the said connections.
回弯压力降除考虑回弯头的局部阻力外，还包括相连直管段受回弯影响而增加的压力降。
The additional frictional pressure drop for vertical tubes due to its connection with the bend was accounted into the frictional component due to return flow.
管段流量与终点水温的关系，是热水供应系统中循环泵选择计算研究的一个重要理论依据。
Therefore, this conclusion should be taken into account when we study how to select one circulation pump with reason in a hot-water supply system.
管段流量与终点水温的关系，是热水供应系统中循环泵选择计算研究的一个重要理论依据。
Therefore, this conclusion should be taken into account when we study how to select one circulation pump with reason in a hot-water supply system.
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