外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%教案(4)

8-1强度理论的概念 8-2四个强度理论及其相当应力 8-3莫尔强度理论及其相当应力 8-4强度理论的应用

8-1强度理论的概念 8-2四个强度理论及其相当应力 8-3莫尔强度理论及其相当应力 8-4强度理论的应用

8-1平面连杆机构的组成及其优缺点 8-2平面四杆机构的基本形式及其演化 8-3平面四杄机构的工作特性 8-4平面连杆机构的运动设计

外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%教案(3)

外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%教案(2)

外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%教案(1)

8-1 周期信号的频谱分析 8-2 傅里叶变换 8-2-2 常用信号的傅里叶变换 8-3 傅里叶变换的性质

外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%习题

外研版（三起）（2012）小学英语六年级下册Module 8 Unit 1 Why do you have cups on your heads$%Module 8 Unit 1 Why do you have cups on your heads$%习题(4)