生成方式：内置 image_gen，局部图像编辑；该图仅调用一次。
源文件：/Users/chenzhijian/Documents/ChatGPT/智慧农业项目/output/industrial-design/A5_分体太阳能电动阀_ID_V1/03_A5田间分体太阳能安装.png

Use case: precise-object-edit
The supplied image is the EDIT TARGET. This is a tightly localized correction to ONLY the mechanical angle indicator on top of the existing A5 actuator. Preserve all other existing image content and composition.

Required correction:
REMOVE the existing raised orange-and-black conical / triangular crown / knob completely from the top-center circular opening.
Replace it with a REALISTIC FLAT MECHANICAL VALVE OPENING-ANGLE INDICATOR beneath a transparent protective window. The circular transparent cover must be FLUSH with the surrounding warm-white top surface, or very slightly RECESSED inside the existing opening. Thin dark circular edge only; NO dome, pedestal, tall bezel, raised handle or knob.
Below the glass is a FLAT matte charcoal mechanical dial with fine pale tick marks and a 0°–90° QUARTER-TURN scale. Use only the scale labels “0°”, “30°”, “60°”, “90°” if readable at this view size, clearly arranged along a ninety-degree arc, not a full 360-degree gauge. A thin FLAT ORANGE NEEDLE lies parallel to the dial surface and rotates about a small flat center pivot, under the cover. The needle is conceptually linked mechanically to the valve stem. Nothing rises above the cover. It is a passive mechanical dial viewed through glass, not an electrical screen or an adjustment knob.
Retain the original size and location of the circular indicator aperture. It must look integrated and elegant within the SAME A5 top lid, with just a subtle flat glass reflection.

Invariants — DO NOT CHANGE:
Every actuator shell outline, exact proportions, warm-white surface, orange horizontal edge, dark metal lower drive base, closed round side emergency access cover, three front control buttons, tiny status LED, tiny A5 logo, single downward solar power connector and its cable. Preserve the existing valve bodies, valve-stem connections, mounting bolts, solar panel and pole if present. Preserve the exact camera, lighting, reflections, scene, backgrounds, layout, crop, typography and all existing captions. No new component, port, antenna, camera or sensor.

Avoid:
ABSOLUTELY NO projecting orange pyramid, cone, triangular crown, rotary hand knob, raised pointer, protruding spindle, tall indicator cap, dome lens, handwheel, LED digits, digital screen or touchscreen. No other redesign. No new labels or specifications outside the tiny mechanical dial itself.

Specific scope for this image: correct ONLY the one top indicator on the field-installed A5 actuator. Preserve the complete photographic field scene, pipeline, tightly assembled butterfly-valve flanges with no visible open bore, bolts, mechanical coupling, separate solar panel and pole, single power cable and clips. Do not change the pipeline connection or add exposed butterfly-disc internals. Keep the photo completely free of overlay text. Only the tiny scale text inside the flush mechanical indicator is allowed.

