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- germ layer theory 胚层学说
- Methods: Add sodium chloride injection to the germ layer medium. 方法:菌层培养基加氯化钠注射液。
- 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
- 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。
- A deformable layer theory does not appear to be tenable in glass-reinforced composites. 变形层理论在玻璃增强复合材料中说服力不强。
- The layer of cells formed by the cleavage of a fertilized mammalian egg.It later divides into the three germ layers from which the embryo develops. 胚盘由哺乳动物受精卵分裂而形成的细胞层。后期分裂为三层，胚胎由此发育
- These special flow phenomena have been ex-plained in physics and mechanics by means of boundal layer theory. 综合应用边界层等理论给出这些特殊渗流现象的物理和力学解释。
- A boundary layer theory of shell buckling,which includes the effects of nonlinear prebuckling deformations, large . 将壳体屈曲的边界层理论推广到复合材料层合剪切圆柱曲板受侧压作用的情况。
- The layer of cells formed by the cleavage of a fertilized mammalian egg. It later divides into the three germ layers from which the embryo develops. 胚盘，由哺乳动物受精卵分裂而形成的细胞层。后期分裂为三层，胚胎由此发育。
- The diffusional deposition of particles of finite diameter on the surface of a charged droplet is estimated by employing thin concentration boundary layer theory. 采用浓度边界层理论讨论了细微粒子在荷电雾滴表面上的扩散效应。
- Under the rules of "Easy-strippable sinterning layer theory, a new foundry coating has been developed speciallly for large copper alloy casting. 大型铜合金铸件铸型涂料是为实现烧结剥离型铸型涂料系列化和引进技术国产化而研制的新型涂料,具有较高的理论和实用意义。
- Derived from two embryonic germ layers, the ectoderm and the endoderm. Used of lower invertebrates, such as sponges and coelenterates. 双胚层的具有两个胚层（外胚层和内胚层）的。用于低等无脊椎动物，如寄生虫和腔肠动物
- The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop. 外胚层胚胎最初三层胚层中的最外一层，由此发育成为表皮、神经组织和脊椎动物的感觉器官
- The distributions of the field variations are given.The new friction layer theory is applied and nonsteady and steady deformation are studied. 应用新的摩擦层理论，研究了非稳态和稳态变形，实现了工件成形过程的计算机动态图形显示。
- Until now, the three germ layers formed, the three germ layers is the development of primordial matrix. 到现在为止，三胚层就形成了，三胚层是胎体发育的始基。
- Based on the mesne layer theory, the centralized stress cantilever was designed, and the infection factors was analysed in detail. 文中以材料力学的中性层理论为理论依据，设计了结构独特的应力集中结构悬臂梁，并对各影响因素进行了详细分析。
- The outermost of the three primary germ layers of an embryo,from which the epidermis,nervous tissue,and,in vertebrates,sense organs develop. 外胚层胚胎最初三层胚层中的最外一层，由此发育成为表皮、神经组织和脊椎动物的感觉器官。
- Derived from two embryonic germ layers, the ectoderm and the endoderm.Used of lower invertebrates, such as sponges and coelenterates. 双胚层的具有两个胚层（外胚层和内胚层）的。用于低等无脊椎动物，如寄生虫和腔肠动物
- Derived from two embryonic germ layers,the ectoderm and the endoderm.Used of lower invertebrates,such as sponges and coelenterates. 双胚层的具有两个胚层(外胚层和内胚层)的。用于低等无脊椎动物，如寄生虫和腔肠动物
- The innermost of the three primary germ layers of an animal embryo,developing into the gastrointestinal tract,the lungs,and associated structures. 内胚层动物胚胎三个原始胚层的最内层发育成胃肠道、肺及其附属衍生结构
