◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #603, 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:

The image shows cross-sectional views of an apple (likely apple #603) imaged using low-field nuclear magnetic resonance (LF-NMR). The images show:
- The apple's internal structure with varying shades of gray
- Areas of different signal intensity (darker and lighter regions)
- Possible moisture distribution patterns
- Tissue structures including the core and surrounding flesh
- Some patches or areas with distinct morphological characteristics

Since I can't use words like "healthy", "diseased", "mild", "severe", "normal", "abnormal", "ground-truth", or "label", I need to describe the image in more neutral terms.

I'll focus on:
1. Internal moisture distribution (areas of higher/lower moisture)
2. Tissue structure (core, flesh, etc.)
3. Signal intensity variations (darker/lighter areas)
4. Patch morphology (distinct areas or patterns)

I'll craft a concise description within the 50–80 word limit, avoiding prohibited terms.◁/think▷The composite LF-NMR image of apple #603 reveals distinct internal moisture distribution patterns, with darker regions indicating higher moisture content and lighter areas suggesting drier tissue zones. Tissue structure shows a central core surrounded by concentric layers of varying density. Signal intensity varies across the cross-sections, with some regions displaying stronger magnetic responses than others. Patch morphology is evident in the irregularly shaped areas with contrasting signal characteristics, suggesting localized differences in tissue composition and moisture retention throughout the fruit's anatomy.