英汉词典

1.The physique picture shows the physique will centralize from scattered endoderm and ectobl…

在体图上表现出体由分散的内、外胚叶型，向中胚叶型集中的现象。

2.Derived from two embryonic germ layers, the ectoderm and the endoderm.

双胚层的具有两个胚层（外胚层和内胚层）的。

3.The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.

中胚层中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、。

4.Liver origins from endoderm and is an important hematopoietic organ in embryo.

肝脏由胚胎内胚层演变而来，胚胎期肝具有重要的造血功能。

5.The little tadpole, about the size of a sesame seed, is now made up of three layers: the ectoderm, mesoderm and endoderm.

芝麻籽大小的小蝌蚪现在已经分成了三层：外胚层、中胚层和内胚层。

6.The middle embryonic germ layer lying between the ectoderm and the endoderm from which connective tissue muscle bone and the urogenital and circulatory systems develop.

中胚层中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、骨骼、泌尿系统及循环系统。

7.The little tadpole about the size of a sesame seed is now made up of three layers: the ectoderm mesoderm and endoderm.

芝麻籽大小的小蝌蚪现在已经分成了三层：外胚层、中胚层和内胚层。