蓝色实验室燃气炉三脚架产品图

写实产品摄影，一件实验室燃气炉或三脚架类器具置于浅灰白色纯色背景中央。顶部是厚实的钴蓝色圆环，三根细长不锈钢支腿向外展开，末端有黑色橡胶脚垫。中央垂直金属立管为拉丝不锈钢质感，上部套有棕铜色金属环，下部连接蓝色铸造金属底座；底座侧面伸出黄铜滚花旋钮和带防滑纹的软管接头。正面略高机位，完整展示器具全貌，棚拍均匀柔光，蓝色与金属色对比清晰，细节锐利，2:3竖幅构图，无人物，无文字。

Realistic product photography of a laboratory gas burner or tripod-style apparatus centered on a light gray-white seamless studio background. The top is a thick cobalt blue circular ring, with three slender stainless steel legs spreading outward and ending in black rubber feet. A central vertical brushed stainless steel tube has a brown-bronze metal collar near the top and connects to a blue cast metal base; a brass knurled knob and a ribbed hose connector extend from the side of the base. Front slightly elevated camera angle, full object visible, soft even studio lighting, clear contrast between blue and metallic surfaces, sharp details, 2:3 vertical composition, no people, no text.