A.1.335 B.13.33 C.1.465 D.14.65
A.旋转脚螺栓 B.伸缩三脚架架腿 C.转动照准部 D.旋转水平度盘
A.5,0 B.5,5 C.10,0 D.10,5
A.5 B.10 C.30 D.40