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During this stage, the cells group into three layers, the first is the 'ectoderm' which then in turn generates the 'mesoderm' and 'endoderm' layers.

在这一阶段，细胞分化为3层，第一层是"外胚层"，它最终会形成中胚层和内胚层。

The anther wall layers consist of the epidermis, the one layered endothecium, two middle layers and the tapetum of one layer.

花药壁之构成，含表皮层、一层内壁层、二层中间层和一层营养层。

The anther possesses four microsparangia with its wall composed of four layers: epidermis, endothecium, middle layers and a 2\|nucleate celled tapetum.

绒毡层细胞在发育后期由单核分裂为2 核，多原位解体，为腺质型；但大约有12％小孢子囊的绒毡层在小孢子四分体释放时期进入花药室内，成为变形绒毡层。

TG-DSC results revealed that the decomposition of magnetic CoAl HTLcs proceeded in two stages. The first large endothermic effect below 220℃involves the loss of physically absorbed and interlayer water and the second endothermal effect, between 220℃and 402℃, corresponds to the decomposition of the hydroxide layers and the removal of anions in the brucite-like layers. The S_ and pore diameter information of magnetic CoAl HTLcs were tested by N_2 adsorption-desorption analysis.

TG-DSC结果表明磁性CoAl水滑石有两个过程，在220℃以下的第一个失重过程是由于物理吸附水的移除造成的，在220℃至402℃之间的主要失重过程是由于材料脱除结构水，碳酸根离子和部分羟基造成，并伴随着层板结构的塌陷。N_2 adsorption-desorption测试分析了磁性钴铝水滑石的比表面积、孔径等信息。

Then it is firstly and systematically presented the layered compressible data of borehole extensometer in Changzhou area from 1984 to 2002 in this paper. Based on the Characteristics of Aquifer system and properties of soil layers, the porous soil layer in the research area is divided into four different compressible layers.

中文摘要：系统分析了常州地区地下水开采动态和地面沉降发生发展历史，概述了研究区地面沉降的框架，在此基础上，系统研究了常州市分层标从1984 年至2002 年的分层沉降资料。

The cable which was composed of multiple layers was equivalent to two layers, conductor and outer layer, by harmonic mean method.

利用调和平均法对电缆导体外的多层介质进行处理，最终将电缆等效为导体和外护层的2层结构。

Two technology including nitrocarburizing process and salt nitrocarburzing process haver been adopted. Several conclusions were obtained: firstly, nitrided layers consist of two layers including the outer white layer, mainly ε and γ′ with favorite errosion resistance, the inner dark layer consist of α-Fe.

再往里为扩散层，扩散层与原始组织无明显区别，是过饱和含氮的α-Fe固溶体，比原始组织更易受腐蚀；(2)试样经长时间氮碳共渗后，渗层最表面会出现疏松，这是因为Fe原子向外扩散，在ε相内造成Fe原子空位，空位向内扩散，并可能在晶界上或某些晶体缺陷处堆积，以致造成空洞。

The C atom in ideal graphite crystals is hybridized in sp^2 orbital and forms covalent bonds with adjacent 3 other C atoms. The graphite crystals consist of stacks of parallel hexagonal net planar layers. These layers are integrated with Van der Waals attraction.

理想的石墨晶体是由碳原子以sp^2杂化轨道和邻近的三个碳原子形成共价键，构成六角平面的网状层片结构，层片之间以Van der Waals力相结合。

The results show that humate compound fertilizer significantly increases root fresh weight and vigor of wheat both in the 0~20 cm and 20~40 cm soil layers, promoting root growth in these layers.

结果表明，两种供水条件下，腐植酸复合肥均可显著提高0~20 cm和20~40 cm土层小麦根系鲜重和根系活力，促进根系生长发育。

In reservoir engineering,the Kiny factor of core perme-ability can be used to evaluate a reservoir heterogeneity;the development data for individual layers in layer series of de-velopment can be used to estimate the production status of layers;while profile-testing data can be applied to analyze water injectivity and fluid production.

在油藏工程中可利用岩心渗透率的基尼系数评价储集层的非均质性，利用开发层系中各小层开发数据评价小层产出状况，利用剖面测试数据分析吸水和产液状况。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。