当皮肤暴露在阳光下，紫外线辐射会引发游离原子团的形成，转而破坏皮肤细胞中的DNA， 引起肿瘤的生长。
When the skin is exposed to sunlight, the radiation triggers the formation of free radicals which, in turn, damages the DNA in skin cells, causing tumours to grow.
当胚发育到4—6个细胞时，在胚囊珠孔瑞的游离核之间先形成细胞壁。细胞壁的形成是以自由壁的方式从珠孔端到合点端自外向内进行。
The free cell wall formation occurs first in the micropylar end when the embryo is 4-6 celled stage, then to the chalazal end and the center.
细胞游离面部分微绒毛的微丝形成中心根并深入胞质。
The microfilaments of some microvilli formed core rootlets and entered into the cytoplasm.
后者常融合成大泡，开口于细胞游离面，形成分泌颗粒。
The latter type was often fused with large vacuoles and opened to the free surface of the cell as secretory granules.
含大豆异黄酮，提升皮肤细胞对抗游离基的能力，减少紫外线对皮肤的伤害，预防黑色素及色斑形成。
The protein also contains soy isoflavones that can boost the ability of skin cells to fight against free radicals and help prevent melanin formation.
当胚乳游离核达到1 6或32个时，最早的珠心胚原始细胞由靠近胚囊珠孔端的珠心细胞分化形成。
When the free nuclei of the endosperm were 16 or 32, the nucellar embryo initial (s) originated from the nucellar cells near the micropylar end of the embryo sac.
当胚乳游离核达到1 6或32个时，最早的珠心胚原始细胞由靠近胚囊珠孔端的珠心细胞分化形成。
When the free nuclei of the endosperm were 16 or 32, the nucellar embryo initial (s) originated from the nucellar cells near the micropylar end of the embryo sac.
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