东北石油大学硕士研究生学位论文Research on the Active Solar Heating System of Greenhouse in IntenseCold AreaABSTRACTIn this paper,the in-depth research about greenhouse in cold regi...

压力容器焊接工艺设计/压力容器焊接工艺说明书.doc压力容器焊接工艺设计/压力容器补绘部件图.dwg压力容器焊接工艺设计/压力容器装备过程工艺卡.doc压力容器焊接工艺设计/热处理工艺卡.dwg压力容...

structure feature is between components All adopt the connection by oil cylinder hinged adjustableto realize the various movements excavation.Moving arm little hinge point and rota...

本科论文3.10螺栓的设计计算253.11链轮的计算.....263.12从动链轮的结构设计4444444293.13从动链轮半轴的校核293.14经济技术分析303.15设备本身发生故障：313.16本章小结314故障分析：324.1结构...

ABSTRACTIn this paper,the main function of the air intake system of A320 series aircraft engine is to transfercompressed air from the air supply source to different systems of airc...

重庆理工大学毕业论文山地用小型荞麦播种机动力、传动、行走及功能转换机构的设计Abstrictmini buckwheat sower is a machine of sowing buckwheat seeds.Recently,thebuckwheat has been attac...

本科论文33参考文献…致35,4444

ABSTRACTThis paper is about the design of a speed and current double closed-loop speed controlsystem using DC motor and thyristor control technology.Firstly,it is needed to model t...

液压挖掘机正铲工作装置设计/A model of the working operatiors__ of a quarry excavator.pdf液压挖掘机正铲工作装置设计/chandougang1_3.prt.1液压挖掘机正铲工作装置设计/chandougang222.prt...

JLY3809机立窑（加料及窑罩部件）设计/JLY3809机立窑(加料及窑罩部件)设计说明书--甘为国 2006.docJLY3809机立窑（加料及窑罩部件）设计/JLY3809机立窑(加料及窑罩部件)设计说明书封面--甘为国 ...