Stainless steel constructure, work smoothly and low noise;
不锈钢外壳，美观大方，工作平稳，噪音低；
Strengthening the Constructure of the Enterprises' Technical Development Ability.
加强企业的技术开发能力建设。
This article introduces the constructure of DVB-C CATV system and IRD, analysises the work priniciple of receiver, compares with DVB-S system.
介绍有线数字电视DVB -C系统的结构及其IRD ，分析该系统前端和接收端的工作原理，并与数字卫星电视接收DVB -S系统进行比较。
Difference of main constructure of Lvshun Russian and Japanese Prison. The grey part built by Russians in 1902, the red one by Japanese in 1907
中文（简体） ：旅顺日俄监狱主建筑，灰砖部分为1902年沙俄所建，红砖部分为1907年日本所建。
Mathematical model which complys with both codes of Concrete structure Design (GBJ10 89) and Antiseismic Constructure Design (GBJ11 89) is set up.
按照现行的《混凝土结构设计规范》GBJ10 - 89及《建筑抗震设计规范》GBJ11 - 89的要求建立了数学模型。
This paper shows the existence of odd periodic points for a class of unimodal maps of the interval and gives order constructure of some periodic orbits.
本文指出了一族单峰映射存在周期为奇数的周期点，并进一步研究了某些周期轨道的结构。
This paper shows the existence of odd periodic points for a class of unimodal maps of the interval and gives order constructure of some periodic orbits.
本文指出了一族单峰映射存在周期为奇数的周期点，并进一步研究了某些周期轨道的结构。
应用推荐