《工程热力学答案》PPT课件

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1、第3章　点、直线、平面的投影3-13-33-2总目录3-43-53-1.13-1.23-1.33-1.43-1.53-1.63-2.13-2.23-2.33-2.43-3.13-3.23-3.33-3.43-3.53-4.13-4.23-4.33-5.13-5.23-5.33-5.43-5.5Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.空间V面上X

2、轴上H面上3-1.1、指出下列各点的空间位置Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-1.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-1.Evaluationonly.Cre

3、atedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-1.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-1.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientPro

4、file5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-1.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.3-2.1、画出下列直线段的第三投影，并判别其相对投影面的位置正平线侧平线Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0

5、.0.Copyright2004-2011AsposePtyLtd.侧垂线水平线Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.正垂线一般位置直线Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3

6、-2.2、作出下列直线的三面投影a)正平线AB,在点B在点A之右上方，γ=30°，AB=20mm。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案b）正垂线CD，点D在点C之后，CD=18mm。Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyrigh

7、t2004-2011AsposePtyLtd.答案3-2.3、在直线AB上取一点K，使AK：KB=3：2；Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.答案3-2.3、在直线CD上取一点E使CE：ED=2：1.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.C

8、opyright2004-2011AsposePtyLtd.答案3-2.4、在直线EF上取一点p，使P点与H面、V面距离之比为3：2Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.3-3.1、判别直线AB和CD的相对位置（平行、相交、交叉）Evaluationonly.Createdwit