The ultrastructure and formation process of the annulate leamellae ( AL) in mouse spermatids were observed.

Annulate lamellae consist of parallel flat sacs with a length of 1.5& 2.0 μ m.

环层板是由长1.5～2.0μm、平行排列的扁囊组成。

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To observe the morphological changes of apoptotic cell nucleus and annulate lamella in spleen of chick embryo.

目的：着重观察鸡胚脾脏凋亡细胞核及其环孔板的形态学变化。

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Annulate Lamellae in The Embryonic Cells and The Graft Callus of Angiosperms

被子植物胚性细胞及嫁接愈伤组织中的环状片层

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Ultrastructure of nucleus and annulate lamella of apoptotic cell in spleen of chick embryo

鸡胚脾脏凋亡细胞核及其环孔板的超微结构

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Spontaneous Formation of Annulate Lamellae and nuclear pore complexes in Activated Xenopus Egg Extracts

非洲爪蟾卵提取物中环形片层及其核孔复合体的自发形成

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Finally, the weight, the strength and the stability of the domed bulkhead with nonaxisymmetry sphere-conical transitional annulated shell of some middle-size submarine before and after optimization have been contrasted with examples.

最后用某中型艇的非轴对称球锥过渡环壳的球面舱壁进行实例分析，对比优化前后球面舱壁的重量值及强度与稳定性性能。

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Design and Study of Dynamic Foundation of Annulated Column Which Sustains the Amplitude Airship in the Happy Valley in Beijing

北京欢乐谷聚能飞船圆环柱动力基础设计研究

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Electron-deficient conjugated systems are often involved in a variety of annulation reactions as electrophiles. However, the phosphine-catalyzed annulations of electron-poor conjugated systems are rarely touched.

缺电子共轭体系作为亲电试剂可参与多种环化反应，而膦催化下其参与的环化反应却鲜有报道。

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Based on frauhofer diffraction integral formula, the calculation and testing method of I_0 ( annulation)/ I_0 ( aperture) for different obstruction ratio of double reflection optical system are described in this paper.

本文从夫朗禾费积分公式出发，论述了不同遮拦比的双反射光学系统I0（环）/I0（孔）的计算与测试方法，并通过计算和测量获得了有实用价值的数据。

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A developmental model was put forward, which included adjusting the administrative area, cultivating a growth-pole by using the whole superiority, forming a economic union and promoting the economic development for inner ring to outer annulation.

据此提出调整行政区划和产业布局，集中优势培育增长极，建立区域经济联合体，实行圈层梯度推进的发展模式。

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The efficient method is compatible with several functional groups. ( 4) Recent advance in transition-metal-catalyzed annulation of alkynes for the synthesis of naphthalene derivatives was summarized.

该方法具有高效、良好的官能团兼容性；（4）综述了近年来过渡金属催化炔烃环化反应合成萘衍生物的研究进展；然后在介绍了锌盐催化下萘的衍生物的合成。

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Thus, in this dissertation three novel phosphine-catalyzed annulation reactions of electron-deficient conjugated systems have been systematically investigated, and the following results have been achieved. 1.

因此，本论文系统地探索了三类膦催化下缺电子共轭体系参与的新颖环化反应，并取得了以下结果。

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Cantilever Racking: It is fit for long material, annulation, boards, and irregular goods.

悬臂式货架适用于放长物料，环形物料，板材和不规则物料。

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Follow-up Measurement of Plastic Mitral Annulation with 2-DE and Color Doppler Ultrasound

人工二尖瓣环成形术后的二维与彩色多普勒超声随访检测

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The Clinical Observation of Chinese Crude Drug Treatment by Stages on Menoxenia after Putting Annulation

中药分期治疗放环后月经不调的临床观察

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On the Mixed Fundamental Problem in an Elastic Annulation

弹性圆环域的混合基本问题

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An anomalistic month refers to successive returns to perigee, a period of 27.55455 days.

一个近点月指的是返回到近地点相继的时间，为27.55455天。

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It is approximately the LCM (lowest common multiple) of the synodic period (29.53 days), draconic period (27.21 days), and the anomalistic period (27.55 days) of the Moon.

沙罗周期日数约为朔望月周期（29.53 日）、 交点月周期（27.21 日） 和近点月周期（27.55 日） 的最小公倍数。

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Peeling is an important annulet in potato processing, Methods of peeling which have been used at present all has their limitation.

马铃薯去皮是所有马铃薯制品加工工艺过程的重要环节，目前存在的各种去皮方法都各自有其一定的局限性。

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Experimental Study of Flow and Heat Transfer of Narrow Annuli with Bilateral Heating

窄缝环形通道内单相液体传热和压降的实验研究

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