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- When lightweight aggregate concrete is prepared, scoria is mixed in as the coarse aggregate. while steel fibers-polypropylene fibers and hybrid fibers are added respectively. 摘要用天然火山渣作为粗骨料,配制钢纤维、聚丙烯纤维和混杂纤维轻骨料混凝土。
- When lightweight aggregate concrete is prepared, scoria is mixed in as the coarse aggregate, while steel fibers, polypropylene fibers and hybrid fibers are added respectively. 用天然火山渣作为粗骨料,配制钢纤维、聚丙烯纤维和混杂纤维轻骨料混凝土。
- Hybrid Fiber Coax(HFC) networks are considered a promising infrastructure of broadband access network. 光纤同轴混合网 ( HFC)是当今宽带接入网研究中的一个热点。
- HFC (Hybrid Fiber Coax) provides a kind of broadband access way for multimedia and broadband services. HFC(HybridFiberCoax)为多媒体和宽带业务提供了一种宽带接入方式。
- In this paper, we briefly describe the state-of-the-art and future trends of the Hybrid Fiber Coax (HFC) network. 简要论述了当前HFC网的技术水平和将来的发展趋势。
- The fracture energy of S-P hybrid fiber RPC using three-point bending test in Instron machine was tested. 摘要通过三点弯曲梁法测试了钢纤维、混杂纤维(钢纤维、聚丙烯纤维)增强RPC试件的断裂能。
- And air-entraining agent increases impermeability of hybrid fiber reinforced concrete. 引气剂有助于提高混杂纤维混凝土的抗渗性。
- The paper describes the principle and implementation of MAC layer protocols of equipment management system in HFC(Hybrid Fiber Coax) network. 介绍HFC网络设备管理系统的MAC层协议原理及实现。
- Currently hybrid fiber coax (HFC) CATV networks are mainly applied to broadcasting television. There are a lot of frequency bands to be spared. 当前 ,光纤同轴线混合 (HFC)有线电视 (CATV)网络主要用于电视广播 ,存在大量的空闲频带资源。
- This paper studied the mechanical properties and fracture morphologies of glass, carbon and carbon/glass hybrid fiber reinforced PSF/ESF composites. 本文研究了玻璃纤维、碳纤维以及它们的混杂纤维分别增强混杂基体PSF/ESF复合材料的力学性能和断口的破坏形貌。
- In the paper aiming at the demand of power supply in the passing hybrid fiber current ,we lodge two projects:laser-driving and online to provide power. 本文针对目前光电混合式电流互感器的高压侧电源的要求,提出了光推动和在线式电源两个方案。
- Based on MATLAB6.1, simulation of the noise resisting ability of the uplink of HFC(Hybrid Fiber Coax) network using SCDMA scheme is performed. 基于MATLAB6 .;1平台;使用重点抽样 (ImportanceSampling)方法;对采用SCDMA体制的HFC上行信道抗汇聚噪声干扰的性能进行仿真。
- The CATV network is mostly composed of hybrid fiber coax network(HFC),which is one-way,needs to carry on a bidirectional change. 有线电视网大部分是由混合光纤同轴电缆网(HFC)组成的,是单向的,需要进行双向改造。
- HFC(Hybrid Fiber Coax)access network is attached great importance because of its tremendous bandwidth and relative economy. HFC(HybridFiberCoax)接入网以其相对的经济性和巨大的带宽受到广泛重视。
- Hybrid fiber optic adaptors allow users to convert from one connector type to another. Square mounting type, bronze spring alignment sleeves. 混合光纤接头连接;使用户可以从一个转换到另一个类型.;方登型;青铜弹簧线衣袖
- Yuan, H.Q., Chen, J.T., Zhu, J.D.Experimental study of layered hybrid fiber reinforced concrete on mechanical properties [J]. 袁海庆;朱继东;陈景涛.;层布式混杂纤维对混凝土力抗弯性能的改善及其在路面设计中的应用[J]
- This paper analyzes the network structure of the hybrid fiber coax,such as star form network,tree form network,star tree form network and annular network. 分析了混合光纤同轴网的几种组网方式 ,如星形网、树形网、星树形网和环形网。
- This paper introduces the composing principle of the hybrid fiber coax,and analyzes the technology characteristics,such as frequency arrange,index division,transmission form etc. 介绍了混合光纤同轴网的组成及工作原理 ,分析了其频谱安排、指标分配、传输模式等。
- The increase of cellulous fiber in the hybrid fiber can result in the increase of optimum asphalt content, the reduction of density, air voids and Marshall stability. 同时随着混杂纤维体系中木质素纤维比例的增加,沥青混合料的最佳沥青用量增加,密度下降,空隙率和马歇尔稳定度呈减小趋势。
- Data Over Cable Service Interface Specification(DOCSIS)is an industry standard developed for broadband access applications of high speed multimedia via Hybrid Fiber Coax(HFC). 有线电缆数据服务传输规范(DOCSIS)是为基于光纤同轴混合网(HFC)的宽带多媒体接入应用而开发的工业标准。