南昌理工学院本科生毕业论文一、绪论1.1选题背景及意义相对其他起重设备而言，门式起重机具有结构简单、使用方便、作业范围大、适应面广及安全可靠性高的优点，因此其被广泛应用于港口运输业和...

山东理工大学硕士学位论文AbstractAbstractMore than twenty billion cubic meters of methane is discharged each yeah in China,80 percent of the coal mine methane is of ultra-low concen...

本科论文3.7动搓辊轴.193.8轴的校核…193.9工作部件之间的关系233.10三角弹簧与弹簧底座243.11轴承座支架.253.12侧板4444444253.13搓板263.14棉桃破壳机电动机的选择.273.15本章小结284棉桃破壳...

四川大学锦江学院毕业论文（设计）目录第一章引言…1.1研究目的及研究意义.11.2国内外现状概况第二章马铃薯去皮机的结构设计22.1马铃薯去皮机的设计及特点.22.2摩擦式马铃薯去皮机基本结构44444...

哈尔滨工业大学工学硕士学位论文AbstractThe legislation to ban the use of Pb-based solders will become effective im-mediately,which provide a driving force for enterprises to acceler...

Waste automatic sorting machine-sorting mechanism designAbstractWith the trend of garbage more and more,landfills are beginning to lose their power,howto reduce land pollution,recy...

引言1.1设计背景篮球，是现在青少年一个热爱的户外运动。随着经济发展，中国人民物质生活逐渐丰富，对精神生活的追求也在不停提高，都渴望拥有良好的身心健康。人们通过运动来锻炼自身，特别是...

AbstractThis topic takes the function innovation,form innovation and other issues of theelderly intelligent crutches as the starting point,and takes the elderly as the main group o...

Application of borescope technology in aircraft enginesABSTRACTAircraft power plant is the foundation of aircraft to take off,so the safety of aircraft enginesis the key to aircraf...

北京理工大学珠海学院2020届本科生毕业论文Design of automatic garbage sorting processor-transmission systemAbstractWith the continuous improvement of China's development situation,pe...