◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #14, focusing on internal moisture distribution, tissue structure, signal intensity, and patch morphology. I should not use certain prohibited words like 'healthy', 'diseased', 'mild', 'severe', 'normal', 'abnormal', 'ground-truth', or 'label'. I should return only the descriptive text, no JSON, Chinese, or extra explanations.

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

The image shows four cross-sectional views of an apple (likely #14), presented in a composite LF-NMR (Low-Frequency Nuclear Magnetic Resonance) image. 

From what I can observe:
1. The apple's internal structure shows variations in signal intensity, with some areas appearing brighter and others darker. This likely corresponds to differences in moisture content or tissue composition.
2. The tissue structure appears somewhat heterogeneous, with variations in texture and density across different regions of the apple.
3. There are distinct patches or regions with different morphological characteristics. Some areas appear more uniform, while others show more complex patterns.
4. The signal intensity variations suggest that the LF-NMR imaging is effectively capturing differences in the apple's internal properties.

I need to describe these observations without using the prohibited terms. I'll focus on objective characteristics like:
- Variations in brightness/darkness (signal intensity)
- Textural differences (tissue structure)
- Patterns and shapes of different regions (patch morphology)

I'll craft a concise description that captures these elements while staying within the word limit.◁/think▷The composite LF-NMR image of apple #14 displays distinct regions with varying signal intensities, indicating differences in internal moisture distribution. Tissue structures exhibit heterogeneous textures, with some areas showing denser patterns and others appearing more porous. Patch morphology varies across sections, featuring both uniform and irregular shapes. Bright regions suggest higher moisture content or specific tissue compositions, while darker areas correspond to drier zones or contrasting material properties. The imaging effectively captures structural variations throughout the apple's cross-sections.