中文翻译与英英解释 | 【生物学】卵黄囊。
| | | yolk: n. 1.蛋黄，卵黄。 2.羊毛油脂。 3.【生物学】( ... | | bag: n. 1.袋，囊；枕套。 2.钱包；手提皮包；〔pl.〕 ... | |
例句与用法 | 1. | After thymus transplantation , the embryo ' s thymus has trunk cell that comes from the embryo ' s yolk bag , embryo liver and marrow , it excretes a great deal of thymus hormone which change lymphocyte into mature t lymphocyte through multiplication and differentiation , then it help to turn b cell into serous cell , the quantity of the serous cell increases , the antibody that it produces also increases , that is the content of iga , igm and igg is increased
而移制胎儿胸腺后，由于胎儿胸腺内有来自胎儿卵黄囊、胚肝和骨髓的干细胞，并能分泌大量胸腺素，促进淋巴细胞在该处增殖、分化为成熟t淋巴细胞，继而辅助b细胞活化成为浆细胞，浆细胞数量增加，产生的抗体量增加，即igg ， igm ， iga含量增加。
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