Effects of the metallic pit prop on the electromagnetic wave cutoff frequency in the rectangular tunnel;
矩形隧道中的金属支护立柱对电磁波截止频率的影响
The effect of metallic pit prop on transmission characteristics in tunnel is studied.
针对矩形巷道中由于金属支护立柱的存在而带来的分叉不连续问题,提出用分叉波导模型并用模式匹配法和多模传输理论分析传输特性。
Using finite-element method the effects of long objects, such as cage, train and metal pit prop, on electromagnetic wave cutoff frequency is researched systematically in regular tunnels, and it is shown that the long metal objects lower TE wave cutoff frequency and raise TM wave cutoff frequency.
利用有限元方法系统地研究了机车、罐笼、金属支护立柱等长列金属物体对井下规则隧道中电磁波截止频率的影响,可知长列金属物体的存在使TE波模截止频率降低,而使TM波模截止频率升高。
The discussion of seal in the hydraulic support's column and jack;
液压支架立柱、千斤顶缸口密封的探讨
Manvfacturing New Type Heavy-duty Pier Technology using Past
利用废旧支架立柱改制新型墩柱技术
Contact Analysis between Hydraulic Powered Support Column and Socket Based on FEM
基于有限元法的液压支架立柱与柱窝接触分析
A research on the corrosion protection technology of Hydraulic support jacks
液压支架立柱、千斤顶防腐技术的研究
Research of Leg Strength of ZY9000/26/55 Hydraulic Support
ZY9000/26/55型液压支架立柱强度的研究
Research on Leakage of Prop Jack in Powered Support and Settlement Measure
液压支架立柱千斤顶密封泄漏研究及解决措施
Simulate Research about Hydraulic System of Legs in Hydraulic Roof Support Test Bed
液压支架立柱试验台液压系统的设计及仿真
Modelling and Simulation on Prop Controlling System of Hydraulic Support
液压支架立柱控制系统建模与仿真研究
Application of AMESim Software in Modeling and Simulating of Hydraulic Support Column System
AMESim软件在液压支架立柱系统建模及仿真中的应用
Study of Double-Telescopic Prop of Equal Setting Equal Pressure Used in Hydraulic Power Support;
液压支架等初撑力等压双伸缩立柱的研究
Finite Element Analysis and Structure Improvement of Double Telescope Leg for Hydraulic Powered Support
液压支架双伸缩立柱有限元分析及结构改进
Research and Application of Web-based Mold Resources Library
液压支架双伸缩立柱失效形式的研究与分析
Failure analysis and improvement of dual-extension hydraulic legs in hydraulic supports
液压支架双伸缩立柱失效分析及改进措施
A short wooden upright used in structural framing.
架柱用在结构框架中的短木支柱
A dynamic model of landing gear struts is introduced in a non-inertial coordinate system.
在非惯性坐标系中建立了起落架支柱的动力学模型。
a bedpost,ie any of the upright supports of a bedstead,esp a four-poster
床柱（床架的垂直支柱,尤指四根的）.
Brief Analysis of Type and Structures of Two-legged and Four-legged Top Coal Caving Hydraulic Powered Support
两柱与四柱放顶煤液压支架架型及结构浅析
An iron rod or a timber used to strengthen a building, a tight bandage for the wrist and an iron frame to hold the ankle straight are all braces.
用来巩固建筑物的铁杆或木柱、腰部的紧蹦带和夹住脚踝使之直立的铁框架，都叫做支架。
A device usually consisting of two upright posts supporting a crossbeam from which a noose is suspended and used for execution by hanging;a gallows tree.
绞刑架一种装置，通常包括支撑一根悬挂绞索的横梁的两根直立柱子，用于执行绞刑；绞刑架