单词：capillary bed
capillary bed的用法和样例：
例句
- The bronchioles terminate in a capillary bed.细支气管终止于毛细血管床。
- New blood vessels bud out from the already dilated vascular bed to make up the nutritional deficit.新血管从已经膨胀的血管床上长出来以弥补营养缺乏。
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