双胚层的

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

双胚层的具有两个胚层的。

It needs only 20-30 minutes; the active components can be transformed into high concentration active substances, nonstop to the deep skin, the active components infiltrate to Subcutaneous tissue through the channels among hair follicles, sweat glands and cells, reach the mesoblast .then it open the entrance easily by stimulating the water channels protein on the cell membrane, infiltrate the cell membrane, make the skin cells to absorb nutrients plenary.

需20-30分钟即可将经诱导带电的活性成分快速转换成高浓度的活性物质，直达深层皮肤；利用"水电渗透析"技术，使活性成分通过毛囊、汗腺和经过符合穿孔的表皮细胞间通道透过表皮进入中胚层乃至皮下组织，通过实现细胞蛋白水通道并刺激细胞膜上的"水通道蛋白"，轻易打开表皮入口，渗透细胞膜脂质双分子层，使皮肤细胞充分吸收营养成分。

Female flowers: tepals 5 or 6 or several; carpels 2 or 3; ovary superior, 2- or 3-locular; styles 2 or 3, free, persistent; stigma broadly recurved; interstylar nectaries present or lacking; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument or by both integuments.

雌花 花被片5或者6或者几个；心皮2或3；子房上位，室2或3；花柱2-3，离生，宿存；宽的柱头下弯；花柱间的蜜腺有或者无；胚珠每室2，下垂，倒生，具双珠被，具厚珠心；珠孔由内珠被或者两层珠被形成。

The outer layer of a diploblastic animal ,such as a jellyfish.

外层双胚层动物的外层，如海蜇

The galactosyl oligosaccharides of raffinose series are widely distributed in seeds of many species and are localized in tissues that remain viable after desiccation, including the embryo and aleurone layer of cereals, cotyledons and axis tissues of legumes and other dicots.

棉子糖半乳糖苷系列寡糖广泛分布在许多种植物种子中，并存在于干燥后仍能保持活力的组织内，如禾谷类种子的胚及糊粉层，豆类及其他双子叶植物的子叶和胚轴组织等。棉子糖半乳糖苷系列寡糖在禾谷类种子的非自溶性中央胚乳中不合成，但存在于蓖麻种子的自溶性胚乳细胞中。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。