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

属类：综合句库--

All closed-packed arrangements are built by stacking of close-packed layers of the type

所有密堆积排列都是由密堆积层排列而成的。

属类：综合句库--

A thin scalelike or platelike structure,as one of the thin layers of sensitive vascular tissue in the hoof of a horse.

蹄叶一种细小的鳞状或片状结构,如马蹄子上敏感的管状组织的细小薄片

属类：综合句库--

The integument consists of the following layers : (i)the cuticle, (ii)the epidermis and(iii)the basement membrane

体壁由下列各层构成:(i)表皮,(ii)真皮,(iii)底膜。

属类：综合句库--

The cavity within the body of all animals higher than the coelenterates and certain primitive worms,formed by the splitting of the embryonic mesoderm into two layers .In mammals it forms the peritoneal,pleural,and pericardial cavities.

体腔高于腔肠动物和一些本源虫的所有动物体内的腔,由中胚层裂成两层形成。它形成哺乳动物的腹膜的、胸膜的和心包的腔

属类：综合句库--

They serve as a separation layer to form a stable boundary between layers of soil to maintain the integrity, character and performance properties of each layer.

土工织物相当于一个隔离层,在不同的土层之间形成稳定边界,以保持每层的完整性、固有特性以及使用性能。

属类：行业术语-纺织服装-

To prevent ridge marks on the surface of the garment left by the seam allowance on straight or curved edges of necklines, collars, and cuffs, the seam allowance is graded by trimming it in layers .

为了防止领圈、衣领以及袖口的直边或曲边的缝份在衣服的表面隆起,因此缝份要分层修剪(各层的宽窄修剪得不一样)。

属类：行业术语-纺织服装-

For a good bond, an adhesive must counteract the effect of surface roughness and boundary layers

为了取得很好的粘结,粘结剂必须能克服表面粗糙和边界层的反应。

属类：综合句库--

Only a skilled workman can split slate into layers .

惟有巧匠才能把板岩劈成石片。

属类：综合句库--

I filled it with several layers of batting, making it puffy-cloud soft

我在里面填了好几层棉絮,让它象云絮一般柔软。

属类：综合句库--

A mass of igneous rock intruded between layers of sedimentary rock,resulting in uplift.

岩盖一种侵入沉积岩岩层之间的火成岩,它会产生隆起

属类：综合句库--

Development of such distributed feedback heterostructure lasers requires crystal growth on corrugated layers

研制这种分布反馈双异质结构激光器要求在皱折层上生长出单晶层。

属类：综合句库--

The nitride on oxide layers remains intact

氧化物表层上面的氮化物保持原状不动。

属类：综合句库--

It will be noted that between the two layers there exist interstices of two types: tetrahedral and octahedral

要注意两层之间有两种类型的空隙:四面体型和八面体型。

属类：综合句库--

They may be placed at right angles to one another by building layers of fibers in which each layer is at right angles to the layer beneath it (a crosswise arrangement);or the web may have a random arrangement in which the fibers have no specific pattern.

也可以相互垂直,形成的纤维层,每两层之间的纤维相互垂直(纤维垂直排列);也可以任意排列,在这种情况下纤维的排列没有特定的方式。

属类：行业术语-纺织服装-

Consisting of thin,leaflike layers ,as of minerals.

叶状薄层组成的由薄的叶状层组成,如矿物质

属类：综合句库--

An extraordinary medley of feeling--but it was not a medley, exactly;rather it was successive layers of feeling, in which one could not say which layer was undermost--struggled inside him

一种奇怪的交杂的感情--不过不完全是复杂的,而是层层的感情,只是不知道最底下一层是什么--在他的内心中斗争着。

属类：综合句库--

Of,relating to,or characteristic of certain bony fishes,such as the sturgeon and the gar,that have armorlike scales consisting of bony plates covered with layers of dentine and enamel.

硬鳞的,光鳞的属于、关于或具有某种多骨鱼特征的,例如鲟鱼和雀鳝,具有由覆盖有齿质层和珐琅层的骨盘组成的类似盔甲的鳞

属类：综合句库--

A colorless,white,gray,blue,or lilac mineral of anhydrous calcium sulfate,CaSO4,occurring as layers in gypsum deposits.

硬石膏,无水石膏一种无色,白色,灰色,蓝色或淡紫色无水硫酸钙矿物,CaSO4,出现在石膏沉积岩层中

属类：综合句库--

gasket and similar joint,of metal sheeting combined with other material or of two or more layers of metal;sets or assortments of gaskets and similar joints,dissimilar in composition,put up in pouches envelopes or similar packings

用金属与其他材料制成或用双层或金属片制成的封密垫及类似接合衬垫;装于袋、套或类似接合内,结构各不相同的成套或各种不同的密封垫类似接合衬垫

属类：物品名称-机械设备-

Standard test method for net carrier density in silicon epitaxial layers by voltage-capacitance of gated and ungated diodes

用栅控和非栅控二极管的电压-电容关系测定硅外延层中净载流子浓度的标准方法

属类：行业标准名称-国家标准名-GB/T14863-1993

Made of two interwoven layers .

由两个织层做成的

属类：综合句库--

A poem with several layers of meaning.

有多层含义的诗歌

属类：综合句库--

In the process of reeling the silk filament from the cocoon, the outer and inner layers 　are discarded as waste. The sound parts of the cocoon are wound on to reels as single　filament and then assembled into multiple-filament yarns of various types.

在从蚕茧上将蚕丝卷绕下来的过程中,蚕茧的内外层会被作为废物丢掉,蚕茧的主体部分则以单丝方式卷绕到线轴上,然后并合成不同规格的复丝纱线。

属类：行业术语-纺织服装-

Distinct layers are often visible in thick-walled resting cells such as chlamydospores or zygotes of Phycomycetes

在厚壁休眠细胞如藻菌纲的厚孢子或接合子中明显的几层是常常能看见的。

属类：综合句库--

They are used in road construction in various ways. They may be laid over the soil and rock base to help segregate the subsoil and the fill, and they may be laid over the base directly under the surface asphalt layers .

在建造道路方面,土工织物有着多种用途,它们可覆盖在土层或岩石上面,以分离下层土与填充土;也可以直接铺放在路基上,然后覆盖沥青。

属类：行业术语-纺织服装-

desquamation of the superficial layers of the skin begins 5 to 10 days after injury

在伤后五至十天,皮肤的表浅层开始脱屑。

属类：综合句库--

Early electrical workers used it as a coating to insulate coils, and molded it into standalone insulators by pressing together layers of shellac-impregnated paper

早期的电力工人将它用作涂料,隔离缠绕在一起的线圈,还将注满了紫胶的纸一层层地压紧制成单独的绝缘物。

属类：综合句库--

This firmly establishes the nature of the oscillations as low acoustic eigenmodes of the subphotospheric layers

这就确凿地证实了振荡的本质是次光球层的低频声波本征模式。

属类：综合句库--

This is a hexagonal structure in which the two kinds of atom lie in separate layers

这是一种六角形的结构,两类原子处在分离的层内。

属类：综合句库--