灰色便携电子装置3D模型

竖幅2:3比例，灰度3D工业设计线框渲染，纯白浅灰摄影棚背景中央放置一台复古便携式电子装置。装置为高矩形箱体，顶部有倒U形提手，提手边角与内侧可见硬边线框。上部为矩形凹陷面板，面板被浅竖向缝分为两块，底部有两个小凸点。中部前面板左上有一个圆形小按钮/指示灯，中央为大型圆盘刻度旋钮，圆盘表面有放射状网格线，旋钮中央竖起条状握把；左下有三个并排小方形按钮，右下有一个小圆柱旋钮。底部边缘有两个圆形电缆接头和一个中央小孔，两条粗电缆从接头伸出向前下方盘绕，末端连接两个圆柱形探头手柄。整体哑光灰色材质，曲面和电缆表面显示细密线框网格，无文字标识。前左侧四分之三视角略俯视，完整展示装置与电缆；柔和均匀的灰色棚光，背景淡阴影，构图居中，突出工业建模与线框细节。

Vertical 2:3 aspect ratio, grayscale 3D industrial design wireframe render, a vintage portable electronic apparatus placed centrally on a plain white to light gray studio background. The device is a tall rectangular box with an inverted U-shaped carrying handle at the top, hard-edge wireframe visible on the handle corners and inner side. The upper section is a rectangular recessed panel divided into two blocks by a shallow vertical seam, with two small raised dots near the bottom. The front panel has a small circular button/indicator at upper left, a large circular dial knob in the center with radial grid lines on its face and a vertical bar-shaped grip protruding from the center, three small square buttons in a row at lower left, and a small cylindrical knob at lower right. At the bottom edge are two circular cable connectors and a small central hole; two thick cables extend from the connectors and coil forward and downward, ending in two cylindrical probe handles. Overall matte gray material, fine wireframe mesh visible on curved surfaces and cables, no text markings. Three-quarter front-left view, slightly elevated, showing the full device and cables; soft even gray studio lighting, faint shadow on the background, centered composition, emphasizing industrial modeling and wireframe detail.