A、模型包埋固定在下半盒
B、<span style="text-decoration:underline">75|</span>卡环包埋固定在下半盒 </p>
C、<span style="text-decoration:underline">6|</span>包埋固定在下半盒 </p>
D、<span style="text-decoration:underline"><span style="font-family:'times new roman','serif';color:black;font-size:14px">6</span><span style="font-family:宋体;color:black;font-size:14px">|</span></span><span style="font-family:宋体;color:black;font-size:14px">翻至上半盒</span></p>
E、基托边缘适当包埋