北京理工大学珠海学院2020届本科生毕业设计诚信承诺书本人郑重承诺：本人承诺呈交的毕业设计《基于PLC的恒压供水系统设计》是在指导教师的指导下，独立开展研究取得的成果，文中引用他人的观点...

毕业论文〔设计)1 IntroductionIn recent years,more and more people learn English from their teachers in theclassroom.That is to say,classroom instruction is the main media of Englis...

AbstractAlong with the development of the modern urbanization,protect the citydemands urgently need to perform and with the improving people's quality oflife,the life garbage is mo...

Control system of stacking robots based on PLCAbstractThe stacking robot is one of the most frequently encountered control objects inthe modern industrial automation space.With the...

北京理工大学珠海学院2020届本科生毕业论文毕业论文诚信承诺书本人郑重承诺：我所呈交的毕业论文The Analysis of OnlineMarketing Mode and Box Office of Marvel Films是在指导教师的指导下，...

Design and implementation of building block online shoppingmall based on Vue frameworkAbstract:With the gradual improvement of material life today,many families are paying moreand ...

Design of angle measuring instrumentAbstract:Because the concepts of industry 4.0 and intelligent manufacturingare developing gradually,how to accurately get and quantify the chang...

ContentsAbstract in English…3Abstract in Chinese…31.ntroduction…42.basic knowledge of advertisements42.1 classification of advertisements52.2 Objectives of commercial advertisem...

AbstractWith the rapid development of the Internet industry and the continuous progressof automation technology,nowadays,all walks of life will go ahead in the direction ofintellig...

4.衰减.10图3-7声压在不同距离下的衰减特性105.声压特性10图3-8超声波传感器的声压图，.116.灵敏度特性图3-9超声波传感器灵敏度示意图117.辐射特性….113.3.5测距分析..12图3-11探测距离原理图....