There is an important practical meaning to study the law of mining deformation of high voltage transmission pole and tower.
高压输电线路下压煤是许多矿区一种普遍存在的问题，研究高压输电线路杆塔采动变形规律具有重大的现实意义。
Based on the object oriented technology on VB platform, the CAD system STPCAD1.0 of steel transmission pole has been developed.
采用面向对象的编程技术，以VB为设计平台，开发出“输电线路钢管杆cad系统STPCAD1。0”。
Shanghai Jiahui Machinery equipment co., Ltd is the manufacturer which design and produce equipment for production line of roadway lighting pole, electric power transmission pole, communication pole.
上海佳惠机械设备有限公司是从事设计、生产大型电力杆、通讯杆、路灯杆等生产流水线中配套设备的专业生产厂家。
Checking the way the power transmission line pole is fixed.
检查沿途的输电线路。
Transmission line regelation may cause conductor galloping, pole leaning or collapse, conductor breaking or insulator flashover etc.
输电线路覆冰可引起导线舞动、杆塔倾斜、倒塌、断线及绝缘子闪络等问题。
Cement pole is an important component for overhead lines, and its security has a direct impact on the safety of transmission lines.
水泥杆是架空线路中的重要构件，其安全性直接关系到输电线路的正常运行。
Based on the stress performance of steel pole of transmission line, the steel pole is simplified as a matter of cross bending and torque with variable sections and complex loads.
根据输电线路钢管杆的受力特点，将钢管杆简化成受复杂载荷作用的变截面梁的纵横弯曲和扭转问题，并采用传递矩阵方法进行分析求解。
This paper mainly introduced the application of GPS-RTK technology in cross section surveying and pole and tower positioning in transmission line measurement.
在此主要介绍了GPS-RTK技术在输电线路的断面测量以及杆塔定位测量中的应用。
A substructure method and a dual reciprocity boundary element method (DRBEM) are applied to calculate four-pole parameters and transmission loss of ducts and silencers with complex flow.
将子结构法和双倒易边界元法联合应用于预测具有三维复杂流存在时管道和消声器的四极参数与传递损失，阐述其基本原理与数值过程。
There are 2 operation modes for DC transmission system:single pole operation and double-pole operation.
直流输电系统主要有2种运行方式：单极运行方式和双极运行方式。
It should be noted that the Angle tower deviation of transmission and distribution line is the basis for laying Angle pole or pouring the foundation of Angle tower.
输配电线路转角杆塔角位移是线路施工中立转角杆或浇筑转角铁塔基础的依据，应该引起线路施工人员重视。
The four-pole parameters of a straight duct and transmission loss of an expansion chamber have been calculated and compared with the results obtained by means of one-dimensional theory.
文中计算了直管段的四极参数及膨胀腔的传递损失，并与一维理论结果进行了比较。
The switch position of butterfly disc is limited by the adjusting screw pole on the worm gear transmission device. The indicating device displays the position of the valve switch.
蝶板的开关位置都由蜗轮传动装置上的调节螺杆限位，指示牌指示阀的开关位置。
The four-pole parameters of muffler can be obtained using BEM, therefore the acoustic characteristics such as transmission loss can be predicted .
由边界元法计算出消声器的四极参数，从而预测传递损失等消声量。
The idea about quadruple-circuit in the same pole is proposed to solve the serious situation that urban transmission line way is limited.
该方案采用四回路共塔，有效地解决城区线路走廊紧张的矛盾。
The 3-D finite element method is used to obtain the four-pole parameters of a muffler which are in turn used to calculate the transmission loss.
为考察消声器的性能，先用三维有限元法求出消声器两端的四端子参数，然后再根据四端子参数求出消声器的传递损失。
The 3-D finite element method is used to obtain the four-pole parameters of a muffler which are in turn used to calculate the transmission loss.
为考察消声器的性能，先用三维有限元法求出消声器两端的四端子参数，然后再根据四端子参数求出消声器的传递损失。
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