(e) Figure 1-1 exhibits a robot arm that is manufactured up of two sections Arm1 and Arm2 . Arm1 can rotate all over the shoulder joint A, while Arm2 is connected to Arm1 at the elbow joint B, and can rotate around the joint B. 论文摘要用英语来写就是summary，在国外的论文写作当中是必须要有的，因为如果没有summary，那么你此次撰写的论文是不够完整的，也并不能够取得分数或是通过，可刚到院校... https://josuemcpbt.weblogco.com/11616057/the-definitive-guide-to-英国summary代写