第一节 土壤孔性 第二节 土壤结构性（重点） 第三节 土壤耕性

第一节 土壤形成因素及其在土壤发生中的作用 第二节 土壤形成过程 第三节 土壤发育 第四节 土壤分布的规律性 第五节 海南岛土壤简介

第一节 形成土壤母质的矿物、岩石 第二节 岩石的风化与成土母质 第三节 土壤矿物质土粒的组成与特性

《土壤肥料学》课程PPT教学课件（土壤学）土壤肥料学绪论

福州大学：《液压与气压传动》课程电子教案（PPT教学课件）Chapter 12 Pneumatics Transmission System Examples

福州大学：《液压与气压传动》课程电子教案（PPT教学课件）Chapter 11 Basic Circuits and their Application

10.1 Air Supply Devices 10.2 Pneumatic Pneumatic Attachments 10.3 Pneumatic Actuators 10.4 Pneumatic Regulating Valves

9.1 The Approach for Design of Hydrostatic Circuits 9.1.1 Determination of design requirements 9.1.2 Analysis for working conditions and determination of main parameters 9.1.3 Determination of hydraulic system diagram 9.1.4 Calculation and selection of hydraulic components 9.1.5 Performance check for a hydraulic system designed 9.1.6 Drawing of working diagrams and technical documents 9.2 A Design Example of Hydraulic Systems 9.2.1 Analysis of working conditions 9.2.2 Determination of main parameters of the actuator 9.2.3 Design of hydraulic systems 9.2.4 Selection of hydraulic components 9.2.5 Performance check for hydraulic systems

8.1 Hydraulic System of Power-slipway of Combined Machines Tools 8.2 Hydraulic System of Plastic Injection Moulding Machine 8.3 Hydraulic System of YA32-200 Type Four-column Universal Press Machine 8.4 Hydraulic System of Manipulators

7.1 Pressure Control Circuits 7.2 Speed Control Circuits 7.3 Directional Control Circuits 7.4 Multi-actuator Control Circuits