不需要改变管道的长度。
正如管道的长度和截面会影响水流一样，导体对电流的影响也是如此。
Just as the length and cro - section of the pipe affect the flow of water so it is with conductors of electric current.
遇到需连接管道的长度比设计长度短的情况时，活动接头还可以起到延长管道的作用，使用效果好。
When the length of a pipeline needing to be connected is shorter than the designed length, the movable connector can play a role in prolonging the pipeline and has good use effect.
正如管道的长度和截面会影响水流一样，导体对电流的影响也是如此。with表示关系和范围，有“关于”，“对”，“就”之意。
Just as the length and cross-section of the pipe affect the flow of water so it is with conductors of electric current.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
流量开关应该安装在水平管道或垂直管道上，每一侧至少有5倍管道直径的直线管道长度。
It should be installed in horizontal or vertical section of a pipe where there is a straight run of at least 5 pipe diameters on each side.
每个管道的氢容量由管道直径、长度和额定压力决定。
The amount of hydrogen contained in each tube depends on tube diameter, length, and pressure rating.
强调最小喷管长度转向采用锐边喉管道的喷管设计的极限值。
The emphasis on the minimum nozzle length was carried to the limit with the design of nozzle with sharpedged throats.
正在着火的管道长度大概在200米左右，消防官兵一边在用冷水冷却原油储备罐，一边用泡沫灭火。
The length of the pipeline is on fire about 200 meters, fire officers and soldiers while cooling oil reserves in the tank with cold water, while fire-fighting foam.
这使得人们可以用新的阀腔更换肮脏的阀门，新旧管接螺母能够互相配合，不需要改变管道长度。
This permits fouled valve replacement with a new body cartridge, which will fit the old union nuts. No change in piping length is required.
再由共振条件确定出管道的极限冲刷长度。
The limiting erosion length can be determined by the resonance condition.
提出了加设防冲板、缩短单根管道长度及增加加强圈的改进措施。
The improving measures, including the installation of anti-impacting plate and stiffener as well as cutting single pipe length, were proposed.
从理论上对两个定义下的矩形管道单位长度摩擦阻力进行了分析和论证。
Friction resistance of unit length of rectangular pipeline under the two definitions was analyzed and demonstrated theoretically.
管道的直径，长度和安装地点。
本文通过对水下悬空管道的振动分析，利用水下管道的共振条件，导出了共振时管道悬空长度的计算公式。
The calculating formula for suspended length during resonance are derived made out through the analysis of the underwater suspended vibration pipeline and by the utilization of resonance conditions.
结果表明，缩短一次风管道内导流板的长度是可行的。
The test results show that it is feasible to shorten the length of guide plate in a primary air pipe duct.
因此，护木的长度将部分取决于你气管道系统长度。
So the length of handguard will partly depend on the gas tube system you have.
对不同氨分解率和膨胀比的多种情况进行了计算，并对热功率和管道长度的选择进行了分析。
Calculations are performed for various ammonia decomposition rates and various nozzle expand ratio, and the selection of heat power and passage length are investigated also.
在管道设计的各个阶段，长输管道的总长度在设计规范中没有明确的规定。
For the total length of long distance pipeline, there is no definite stipulation in the design's stage in design standards.
分析了系统热容和管道长度对系统静动态性能的影响，为物理模拟不同热管理系统静动态特性提供了依据；
The effects of the ducts length and system thermal capacity on the system steady and transient characteristics were investigated in detail.
最后提出了调整隔震管段长度及支座滑块与地面之间摩擦系数，对三种常用管径管道跨断层设计的建议。
Finally the engineering design suggestion of three commonly used diameter pipe segments is given through changing their length and the friction coefficient between the slip block and the soil surface.
模型由管内蒸汽温降方程、不同敷设方式蒸汽管道的单位长度散热损失方程、总传热热阻计算方程组成。
The model was made up of inner steam temperature drop equations, the steam pipe laying different ways of unit length heat loss equations, total heat resistance calculation equations.
根据管道或容器罐体总散热量和选定的电热带米功率，计算所需电热带总长度。
Calculate the total length of electric heating cables needed according to total heat loss of pipes or tanks and the chosen power per meter.
美国瓦茨“接通”法兰用于需要更长的连接件长度的管道应用中。
The Watts "Make up" Flanges are for use in piping applications where there is a need for additional fitting lay length.
并且，管径最大的管道压降的相对误差最大，并且压降的相对误差将随输送压力的减小而减小，流量的增大而增大，长度的增加而增大。
The larger the transmission pressure, the bigger the pressure relative error; the bigger mass flow rate, the bigger the relative error; the longer the pipeline, the bigger the relative error.
并且，管径最大的管道压降的相对误差最大，并且压降的相对误差将随输送压力的减小而减小，流量的增大而增大，长度的增加而增大。
The larger the transmission pressure, the bigger the pressure relative error; the bigger mass flow rate, the bigger the relative error; the longer the pipeline, the bigger the relative error.
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