末端

Five pairs of 45S rDNA loci and two pairs of 5S rDNA signals were detected on chromosomes of Cucurbita moschata Duch. Luffa cylindrical Roem. contained five pairs of 45S rDNA loci and one pair of 5S rDNA loci. In Benincasa hispida Cogn., two pairs of 45S rDNA sites and one pair of 5S rDNA site were detected. In this species, 5S rDNA and one pair of the 45S loci were collocated closely in chromosome 7S. 45S rDNA chromosomal distribution patterns were highly conserved among the three species, althoufh their number varied markedly. The 5S rDNA sites on chromosomes among the three species were highly polymorphic.

南瓜有5对45S rDNA位点， 2对5S rDNA位点；丝瓜具有5对45S rDNA位点， 1对5S rDNA位点；冬瓜具有2对45S rDNA位点， 1对5S rDNA位点， 5S rDNA位点与其中一对45S rDNA位点都位于7号染色体短臂上，并在物理位置上紧密相邻。45S rDNA在这3种作物染色体上数目变化较大，但在染色体上都倾向分布在短臂末端，其分布模式较为一致。5S rDNA在这3种作物染色体上数目相对保守，但在染色体上分布的位置变化较大。

A novel liquid crystalline compound named p-phenylenediamine di 4-[2- benzamide] was synthesized from allyl 2-hydroxyethylether, ethyl 4-hydroxybenzoate and p-phenylenediamine.

以乙二醇单烯丙基醚、对羟基苯甲酸乙酯、对苯二胺为原料合成了末端为不饱和双键的芳香聚酰胺溶致型液晶化合物——二对烯丙氧基乙氧基苯甲酰对苯二胺，最佳合成的摩尔比为∶羧酸∶对苯二胺∶吡啶=2。

The result indicates that the hydrogen bond formed by Arg24 in PTP-1B and benzotriazole molecules is of great importance for the selectivity of the compounds.

计算结果表明PTP-1B中的Arg24与化合物的氢键相互作用是提高选择性的重要因素，并且在R2位引入氢键供体且体积较大的强供电子基团，将有利于化合物抑制活性的提高，而在R2位取代基的末端引入氢键受体且体积较大的强吸电子基团，将有利于化合物选择性的提高。

Research progresses in the oganoboron π-conjugated materials are reviewed in this paper, in terms of the molecular structures of the π-conjugated systems, including the linear π-conjugated systems with boryl groups at the terminal positions, the starburst π-conjugated systems containing boron atoms at the center, the polymeric π-conjugated systems containing boron atoms in the main chain, the boron-bridged ring-fused π-conjugated systems, as well as the π-conjugated systems with boryl groups at the side positions.

本文根据π-共轭体系分子结构的不同，对有机硼π-共轭材料，包括硼取代基位于末端的线形π-共轭体系、硼原子位于中心的星形π-共轭体系、硼原子位于主链的π-共轭聚合物体系、硼原子桥联的并环π-共轭体系以及硼取代基位于侧链的π-共轭体系等的研究进展进行了综述，并进一步对该领域的发展前景进行展望。

This type of tooth had a special epithelial structure for the maintenance of stem cells, showing the bulbous epithelial protrusion at the apical end.

此类型的牙齿具有维持干细胞活性的一种特殊的上皮结构，显示为根尖末端球形的上皮突出。

In addition, burnishing of the tips of retrieed implants has been noted as a consequence of motion.

另外，翻修取出假体的末端被磨得很亮被认为是运动造成的结果。

Fiber-optic extreme and pathological changes area keep perpendicular, illuminate organizes the surface to pathological changes caky or white film is formed.

光纤末端和病变区保持垂直，照射至病变组织表面凝固或白膜形成。

Results 3 cases of lesions were in the gap of"V"shape between iliac muscle and musculus psoas major on the coronal sections in the lower right abdomen closely adjacent to the cecum,which were narrowed. The lesions showed long even T1 and T2 signals similar to mucous wall particularly in T2WI image. The walls of cyst were thin and even. The cysts were round or oval in shape on transections.The cyst were cucurbits in shape in 2 cases and long cannular in a case on coronal sections and arrowy sections and borderlines of the cysts were clear. The terminal of the cysts showed taper in 2 cases. In addition, cecum polypus was found at the placket of the appendix in a case which was not shown on MRI image.

结果 3例病变均位于右下腹，冠状面位于髂肌和腰大肌形成的&V&形间隙内，与盲肠关系密切，盲肠呈外压改变；呈均匀长T1、长 T2信号；壁薄且均匀，信号与肠管壁相似，于T2WI显示较明显；于横断面分别呈圆形、类圆形及椭圆形，冠状面及矢状面2例显示呈&葫芦&状、1例呈长管状，3例末端均呈&桃尖&样变；边界均清楚。1例于阑尾开口部发生盲肠息肉，MRI未能显示。

The style is elongated, ending in a small, capitate stigma, which becomes receptive at bloom.

长柱延伸，其末端有一小的头状柱头，开花时接受花粉。

In this thesis, we designed and synthesised twonew classes of organometallic dendrimers with the catalytically activecenter at the focal point of the dendrimers.

在本论文中，我们设计并合成了两类催化活性中心在树状分子末端的新型树状分子金属催化剂。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！