年产1万副PETG隐形矫治器生产工艺设计
北京理工大学珠海学院2020届本科生毕业设计The production process design of an annual output of 10,000pairs of PETG invisible appliancesAbstractThis design is the production process d...
广东旅游服务贸易国际竞争力研究
Research on the International Competitiveness of GuangdongTourism Service TradeAbstractAs an industry in the economy of a developing country,tourism has shown its unique vitality a...
聚乙烯拉伸变形的力学及微观结构的分子动力学模拟
转化为非晶区的现象就越明显，同时对拉伸过程中的键长、键角、二面角、缠结度、取向度进行分析，揭示温度对拉伸过程中微观结构的影响。关键字：分子动力学模拟；半晶态聚乙烯：拉伸速率；结晶度...
论土木工程施工项目管理中存在的问题及对策
象，影响招投标文件的公正性。针对违法行为的惩罚力度也不高，还存在监督机制不健全、串标和泄露信息等现象，给招投标文件的公正性带来了不良影响。同时，建设单位出于利益需要，为达到中标目的...
圆盘水浸超声扫描装置设计
北京理工大学珠海学院2020届本科生毕业设计Design of the water-immersed ultrasonic scanning deviceof the discAbstractThe coupling agent used in ultrasonic testing for water immersion ...
义务教育阶段的符号感培养的研究
目录引言.……1.问题的提出.……1.1相关概念的界定.........11.1.1符号与数学符号的界定.....1.1.2数感、符号感与符号意识的界定。。21.2国内外对符号感的研究现状......……·31.2.1国内对符号...
功能对等理论指导下的商务英语合同翻译
本科论文AbstractWith the accelerating of globalization process and the rising of Chineseinternational status,the interaction between China and the rest of the world isdeepening.The...
间接言语行为理论在高中英语听力教学中的应用
本科论文AbstractListening teaching is an integral part of English teaching,as well as themost difficult point in senior high School English teaching.With the sustainabledevelopment...
宁德市蕉城区蝴蝶种类的调查
AbstractThe survey is conducted in five collection areas in Jiaocheng City,namely,Qidu Town,feiluan Town,Yangzhong town,Sandu town and Nanji mountain,Ningde normal college'snew cam...
股指期货交易的税务问题研究
北京理工大学珠海学院2020届本科生毕业论文Research on tax issues of stock index futures tradingAbstractThis paper discusses the tax focus of stock index futures,according to the deve...
