试验组胸腺小叶增多，皮质增厚，淋巴细胞密集，髓质比例减小，胸腺小体减少、减小；
The thymic lobule of experiment group increased, the thymic cortex incrassated and the lymphocyte became coarctate, the portion of thymic medulla decreased and thymic corpuscle enlarged and increased.
周胎胸腺尚未分小叶，也不能分辨皮质和髓质。
At the 8th gestational week the thymus was not yet subdivided into lobules, nor recognized the cortex and medulla.
周胎胸腺尚未分小叶，也不能分辨皮质和髓质。
At the 8th gestational week the thymus was not yet subdivided into lobules, nor recognized the cortex and medulla.
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