1绪论些企业的注册资本指标数值作为辅助变量，因辅助变量分布未知，采用几何法计算分层指标数值，根据该数值对总体进行分层，建立了动态总体连续性分层抽样的抽样调查方案，结合上述所研究理论...

In view of problem 1,firstly,a negotiation graph is constructed by using data information,the thesis negotiation allocation problem is transformed into the maximum edge covering pr...

AbstractWith the development of society and the improvement of people's livingstandards.People are increasingly demanding for the environment.Especially the environment,safety,inte...

第I页AbstractIn this paper,combined with 110kV digital substation engineering practice,a 110kVdigital substation has been designed for the two part of the electrical.This paper fir...

(一)审查设计概算...(二)通过新技术、新工艺来推广设计.。....11(三)引进招投标竞争机制............11(四)让图纸设计实行限额设计.…1山(五)倡导工程招投标制度....11(四)采用激励体制..11(五)...

【四层】4500平米框架结构教学楼局部五层（开题报告、计算书、设计图）/建筑图.dwg【四层】4500平米框架结构教学楼局部五层（开题报告、计算书、设计图）/开题报告.doc【四层】4500平米框架结构...

AbstractThis article combines the basic situation of the water supply system in somecities in our country,and proposes a variable frequency and constant pressurewater supply system...

AbstractRubber cutting machine is a commonly used mechanical devices,its mainfunction is to help the majority of users cut rubber quickly and the efficiency is tentimes of labor.Th...

本科论文摘要刷卡消费已经是我们消费的一种主流方式，刷卡购物、刷卡乘车.…为了使C卡能更好的服务于大众，给人们的出行带来便捷，我设计了一款基于51单片机的公交IC卡系统。该系统以STC89C51单...

目录引言..31.背景和意义….31.1r阳sberrypi平台概述.31.2履带式机器人手臂智能车系统的发展及现状...41.3履带式机械臂智能小车训练控制系统的意义52.履带式机械臂智能小车硬件设计.52.1履带式...