... stage embryo 子叶型胚 heart stage embryo 心形期胚 cordate stage embryo 心形胚 ...
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heart stage embryo
心脏期胚胎
以上为机器翻译结果，长、整句建议使用 人工翻译 。
There were only two layers of nucellus which had abundant cytoplasm and reserved substance, and were consumed at the stage of late heart-shaped embryo.
珠心细胞只有两层，细胞核大，胞质丰富，内含贮藏物质，至心形胚期逐渐解体。
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