"SolidWorks零件与装配体官方课程"的问答

请问一下这个怎么画?, <div> <img src="http://img2.ph.126.net/eF_JknEMl9p4F2yFpDP8IQ==/6619370061490630193.jpg" ></div><div>下面是所陈列的沉孔形状</div><div><img src="http://img1.ph.126.net/kRaK036oANDr2cvZk6wbzQ==/6608472801748102642.jpg" ></div>, SolidWorks零件与装配体官方课程