◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #77, focusing on internal moisture distribution, tissue structure, signal intensity, and patch morphology. I should avoid certain prohibited words and not use JSON, Chinese, or extra explanations.

Let me analyze the image and think about what I can describe:

1. Internal moisture distribution: The image shows variations in gray levels, which might represent moisture content. Areas that are lighter might indicate higher moisture, while darker areas might indicate drier regions.

2. Tissue structure: The overall shape resembles apple tissue with a central core. The texture appears somewhat granular, suggesting cellular structure.

3. Signal intensity: In LF-NMR imaging, signal intensity relates to how the tissue responds to the magnetic field. Brighter areas might indicate stronger signals (possibly drier regions), while darker areas might indicate weaker signals (possibly moist regions).

4. Patch morphology: There appear to be distinct regions with different intensities. Some areas have concentrated darker regions (possibly moisture pockets), while others have more uniform intensities.

Now I'll craft a descriptive paragraph that captures these elements without using the prohibited words. I'll focus on the visual aspects and what they might represent in terms of moisture and tissue structure.

I need to be careful not to use words like "healthy", "diseased", "mild", "severe", "normal", "abnormal", "ground-truth", or "label". I'll also avoid technical jargon that might be too specific without context.

My description will be:
- Approximately 50-80 words
- Focused on the required elements
- Avoiding prohibited words
- Written in English◁/think▷The composite LF-NMR image of apple #77 reveals distinct regions of varying signal intensity across its cross-sectional view. Central areas display moderately dark gray tones, suggesting localized moisture accumulation within the tissue matrix. Peripheral regions exhibit lighter gray intensities, possibly indicating drier cellular structures. The overall morphology features irregularly shaped patches with varying densities, creating a mosaic-like pattern. Signal distribution correlates with visible textural differences, where concentrated moisture appears as distinct darker zones. The image captures the complex interplay of water content and cellular architecture within the apple's internal structure.