layer of tissue in embryology 胚层
two layer tissue 双层生物组织
multi-layer tissue 多层组织
two layer tissue phantoms 双层生物组织模拟体
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。
A true epithelial tissue is present only in a single layer of cells held together via occluding junctions called tight junctions.
真正的上皮组织仅存在于通过称为紧密连接的咬合带而保持在一起的单层细胞中。
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