腔形成

An air exhausting passage is formed from the chamber to an outlet formed in a top wall of the body.

从采样腔到在主体的顶壁上形成的出口形成一个排气通道。

Cleavage produces a blastula a sheet of cells rounded into a sphere that in most species surrounds a cavity.

卵裂产生一个囊胚，形成的细胞壁球形排列形成一个空腔。

When mixed, they form a iscous solution that sets into an elastic coagulum to seal and fill the caity.

组成止血剂的各成分一旦混合后，就会形成一种粘稠的溶液，这种溶液又可以进一步形成弹性凝胶块封闭和填充假肿瘤的空腔。

The anatomical study deepens the knowledge of G-type conducting cells: 1 It proves the theory of two depositional process for secondary wall (Bierhorst, 1960): the discontinuous cellulose layer is laid down before the continuous lignified layer; the former layer is prone to be broken down, while the latter is highly decay-resistant; 2 It suggests that the cellulose primary and secondary walls of tracheids are not perforated. Instead of longitudinal pits (Li, 1992), the lignified tracheid secondary wall of Hsüa possesses irregular simple perforations; 3 In Hsüa reflexa and Huia gracilis, the perforation casts may represent the thickness of lignified secondary wall; 4 The wall structure of G-type tracheid is diversified. At the genus level, the secondary wall structure differs in the distribution, internal shape and structure of the perforations; 5 Perforations of some G-type tracheids combine the characters of S-type tracheids in their distribution, density and diameter.

解剖学的研究加深了对G-型输水管胞的认识 1）验证了管胞次生壁分两个阶段形成的理论（Bierhorst，1960），即先后形成不连续的纤维质层和连续的木质化层，前者易被分解，后者抗侵蚀性强；2）证明管胞纤维质的初生壁和次生壁不具穿孔，Hsüa管胞的木质化次生壁具有不规则的简单穿孔，而不是纵列的纹孔（Li，1992）；3）Hsüa reflexa和Huia gracilis的穿孔铸体可代表木质化次生壁的厚度；4）G-型管胞壁层结构具多样性，植物属一级的分异主要表现在次生壁穿孔的分布、孔腔形状和结构的不同；5）某些G-型管胞的穿孔在其分布、密度和孔径方面可兼有S-型管胞的特征。

In the experimental group, cortex and medullary cavity partly had shaped with little cartilage cells.

实验组中可见有皮质形成，部分髓腔已形成，无明显团聚的软骨细胞。

RESULTS: Before remineralization, through SEM, short blunt eeptoma was found on the surface of lesions of samples in Chinese nutgall group and Ag（ NH3 ）2F group; while in NaF group, globular ecptoma was seen scattering on the surface of the lesions, together with laeune; in deionized group, there was Sharpey＇s fiber.

结果：再矿化前，扫描电镜观察五倍子与氟化氨银处理后牙骨质龋表面形成不规则短钝状突起；氟化钠液组形成大小不一的散在大球状突起，可见一些腔隙存在；去离子水组大量分布夏伯氏纤维。

The outside gill formed the three fingerlike, in the 22、23 stage, it developed at the peak, in the 25 stage, the operculum folded the outside gill in the operculum antrum, the inside gill formed, at the same time the outside gill degenerated.

外鳃进一步发育，形成了三排指状外鳃，到22-23期，达到发育高峰。到胚胎发育25期，外鳃被鳃盖包在鳃盖腔里面，内鳃开始形成，同时外鳃开始退化消失。

Inside the perispore,there are large cavities which are formed mainly by the upheaval of the outer perispore.The lophate folds and superficial ornamentation of spores are formed by the upheaval of the outer perispore.

周壁内有大的空腔，主要是由周壁外层向外隆起形成的，隆起进而形成了孢子的脊状褶皱和表面纹饰。

The true and false cavities of aortic dissection could be displayed on the SE T1WI,T2WI for the B type in 10 of 12 cases.With SE sequence,the true-false cavities did not be showed but the endomembranous pieces could be seen for A type of 2 cases of aortic dissection.

对于SE序列不能区别真假腔的2例A型夹层，轴位T1WI可显示剥离的内膜片。2例主动脉迂曲形成涡流的B型夹层，T1WI和T2WI不能区别真假腔，也不能显示内膜片，加行GR序列轴位扫描，可清晰显示等信号的内膜片。

In order to support a preselected resonant mode, a series of concentric rings (18) is formed in the blocking layer (16, 19), surrounding the resonant cavity (2) so as to provide a Bragg structure which reflects light from the cavity with a phase characteristic that supports the preselected transverse resonant mode.

为支持预定的谐振模式，在阻挡层（16、19）中形成一组围绕谐振腔（2）的同心环（18）以提供一种反射腔中的光的布拉格结构，其相位特性支持预定的横向谐振模。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。