1·The inner ear, which mediates hearing and equilibrium, develops from an ectodermal placode located adjacent to the developing hindbrain.
内耳是调节听力和平衡的器官，来源于外胚层邻近后脑的生长板。
2·And then, moving the evaporating plating fountain to the evaporating plating room, which can plates the evaporating plating fountain onto the placode by the film forming divece.
接着，将蒸镀源 移至蒸镀室内，以通过成膜装置将蒸镀源蒸镀至基板上。
3·Reptiles have placodes too. But in a reptile embryo each placode switches on genes that cause only the skin cells on the back edge of the placode to grow, eventually forming scales.
爬行动物身上同样存在基板，但在胚胎阶段时，它们只会触发基板后延的皮肤细胞基因进行增殖，并最终形成鳞片。
4·In the bird embryo these bristles erupt from tiny patches of skin cells called placodes. A ring of fast-growing cells on the top of the placode builds a cylindrical wall that becomes a bristle.
鸟胚中的刚毛结构来自于被称为基板（placode）的微小皮肤细胞结构，基板顶端快速增殖的细胞环形成了刚毛的圆柱井结构。