◁think▷I need to write a 50–80 word English description of the composite LF-NMR image of apple #522, focusing on internal moisture distribution, tissue structure, signal intensity, and patch morphology. I should avoid using certain prohibited words and not include any 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 likely represent moisture content. Some areas appear darker (lower moisture) while others are lighter (higher moisture). There may be patterns indicating moisture movement or stagnation.

2. Tissue structure: The circular shapes suggest cross-sections of apple tissue. The texture varies, with some areas appearing more granular (possibly indicating cellular structure) and others smoother.

3. Signal intensity: In LF-NMR imaging, signal intensity correlates with moisture content. Brighter areas likely indicate regions with higher moisture content, while darker areas indicate lower moisture.

4. Patch morphology: There appear to be distinct regions or "patches" within the apple. Some are well-defined with clear boundaries, while others blend into adjacent areas. The shape and size of these patches might indicate different tissue states or moisture levels.

Now I'll craft a description that covers these aspects without using prohibited terms like "healthy," "diseased," "mild," "severe," "normal," "abnormal," or "ground-truth." I'll also avoid technical jargon that might be too specific without context.

I need to be concise to stay within the 50–80 word limit while providing meaningful information about the image.◁/think▷The composite LF-NMR image of apple #522 reveals a heterogeneous moisture distribution with distinct regions of varying signal intensity. Tissue structures display irregular patterns, showing both granular and smoother textures across cross-sectional planes. Patch morphology appears variable, with some well-defined areas bordered by less distinct zones. Moisture content correlates with signal brightness, suggesting concentration gradients within the fruit tissue. The overall structural integrity seems maintained despite the moisture variations, with no obvious signs of structural compromise in the visible regions.