◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #613, 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:

1. Internal moisture distribution: I can describe variations in gray levels indicating moisture content, perhaps noting areas of higher or lower moisture.

2. Tissue structure: I can describe the overall texture and structural patterns visible in the apple tissue.

3. Signal intensity: I can note how different regions appear in the LF-NMR image, perhaps with some areas being brighter or darker.

4. Patch morphology: I can describe any distinct patches or patterns visible, their shapes, sizes, and distributions.

Since I can't use certain prohibited terms, I'll focus on objective descriptions of the visual features without making judgments about health or severity.

For the description, I'll create a concise overview that hits all the required elements without using any prohibited words.◁/think▷The composite LF-NMR image of apple #613 displays varying signal intensities across its cross-sectional slices. Moisture distribution appears uneven, with darker regions indicating higher moisture content and lighter areas suggesting drier tissue. The tissue structure reveals a network of vascular bundles and cellular arrangements, with some patches exhibiting distinct morphological patterns. Signal intensity gradients correlate spatially with moisture variations, creating a textured appearance throughout the image. The lower right quadrant shows a more homogeneous region with uniform signal intensity, contrasting with the heterogeneous distribution in other areas.