AbstractIn agricultural production,mechanical weeding is to address the herbicide useand cause serious environmental pollution,weed resistance enhancement problemssuch as the best ...

Analysis of Common Faults of Brake Devices in Civil AircraftABSTRACTOne of the key parts of aircraft is the brake device.Its performance seriouslyaffects the safety performance of ...

哈尔滨工业大学工学硕士学位论文Abstract[Click here and input abstract in English]Keywords [Click here and input keywords in English];-Ⅱ

AbstractTo keep up with the rapidly shifting market and reduce production cost and time,manufacturing enterprises introduce many advanced technology into design andmanufacturing ar...

本科论文摘要由于国家大力发展智能制造并且国家提出“一路一带”“中国制造2025”等利好政策，又激发了3D打印产业的发展动力。3D打印行业市场调查分析报告显示3D打印技术一直是国家重点支持和推...

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...