6－1 平面四杆机构的基本型式及其演化 6－2 平面四杆机构的基本知识 6－3 平面四杆机构的设计

Which of the following expressions represents the rate of work done by the stresses during the deformation of a body of an arbitrary material?

10.1 菜单 10.2 对话框 10.3 多重文档界面（MDI） 10.4 文件操作控件 10.5 工具栏

一、 GUI程序设计 二、事件驱动模型

The following stress-strain curves were obtained for dif- ferent materials subjecting the specimen to the loading path(a, b, c, d ). Which one(s) of them correspond to elas- tic material(s)

Extend definition to material bodies: total work is the addition of the work done on all particles by forces distributed over the volume W by forces distributed over the surface t·udS

Which of the following expressions most ac curately and simply represents the comple mentary strain energy density Uc of a linear elastic material?

9.1 数据的导入和导出 9.2 使用DTS设计器

For the uniform state of plane strain shown in the fig ure,which one(s) of the following statement(s) is(are valid?(Assume Poisson's ratio v+0)

一、猪人工授精发展概况 二、公猪方面 三、精液方面 四、卵子方面 五、母猪方面 六、人工授精实验室的设计