温室钢木节点的CAD风细节

A technical drawing without readable text. The connection nodes between steel beams and wooden beams in a greenhouse are represented by white thin lines, cut-out shadows and two bolt shapes. The structure is accurate on a dark blue background; only short scale lines are used and no forged numbers are written.

无可读文字的技术制图画面，一处温室钢梁与木梁的连接节点以白色细线、剖切阴影和两种螺栓形状表示，深蓝底上结构准确；只用短刻度线，不写伪造数字。