组织层：生物体内的一层组织，由一些类似细胞的细胞组成，通常用于保护和支持器官。
Collagens are a group of proteins in the dermis, the connective tissue layer of the skin, and are responsible for the strength of skin.
胶原是真皮里的一组蛋白，是皮肤的结缔组织层，并形成了皮肤的韧性。
Leatherbacks do not have blubber, but they do have a reptilian equivalent: thick, oil-saturated skin, with a layer of fibrous, fatty tissue just beneath it.
棱皮龟没有鲸脂，但它们有和爬行类动物相似的结构：厚且含油的皮肤，下面有一层纤维，再下面是脂肪组织。
You see, adult female birds during egg production produce a layer of spongy bone tissue inside certain long bones.
你看，成年雌鸟在产蛋的过程中会在某些长骨内产生一层海绵状的骨组织。
If I looked within the skin, one of the lower layers of your skin, the connective tissue layer, you'd find many fibroblasts there and they're just waiting in a more rounded shape than this, just waiting to do their job.
如果观察皮肤,更深处的一层细胞,结缔组织层,就能看到许多成纤维细胞,它们平时形状接近圆形,时刻准备着去完成自己的任务
生物医学工程探索课程节选 : 耶鲁公开课
The patients most likely to benefit from these devices are those with retinitis pigmentosa, a rare disease that damages and kills the cells in the retina a tissue layer at the back of the eye that process light.
In the UK, the established practice is to operate on the baby almost immediately after birth and place a protective layer of tissue around the spine.
For regeneration to continue, stem cells from both the bone marrow and the heart itself must be coaxed to grow a second layer of tissue that is necessary for the formation of arteries, which are bigger and thicker than capillaries.