复古光学显微镜灰模3D模型

纯白背景中央放置一台复古光学显微镜的灰模3D网格模型，正面略偏左的近正交视角，纵向构图，主体完整可见；显微镜由厚重双足底座、垂直立柱、圆形载物台、粗准焦与细准焦旋钮、短物镜筒、带法兰环的高耸镜筒、顶部目镜、侧向支撑架及载物台下方倾斜反光镜组成；整体为无彩色灰色半透明实体，表面覆盖均匀细密的方格线框，无贴图无文字，柔和均匀的影棚光，干净工业设计展示风格，画幅比例约1:2.5。

A grayscale 3D wireframe mesh model of a vintage optical microscope centered on a plain white background, near-front orthographic view slightly from the left, vertical composition, entire object visible; the microscope consists of a heavy two-foot base, vertical arm, circular stage with central aperture, coarse and fine focus knobs, short objective lens, tall body tube with a flanged collar, top eyepiece, side support bracket, and a tilted mirror below the stage; the whole object is a colorless translucent gray solid covered with an even fine grid wireframe, no textures, no text, soft even studio lighting, clean industrial design presentation style, portrait aspect ratio about 1:2.5.