在形成的

Stuber et al.(1992) considered the overdominance is the major genetic basis of heterosis in maize; Xiao et al.(1995) suggested the dominance is the major molecular mechanism of heterosis in rice. Subsequently, Yu et al.(1997) and Hua et al.(2003) demonstrated the epistasis made the siginificant contribution to heterosis in rice.

Stuber等认为，超显性是玉米杂种优势形成的主要原因；Xiao等(1995)认为显性作用是水稻杂种优势形成的遗传基础，Yu等(1997)和Hua等(2003)认为上位性在杂种优势形成过程中起重要作用。

Based on the regional tectonic evolution, combined with the high precision isotopic ages from this paper and other geologists, we have some new acquaintances as follows: 1 There has no Caledonian granite belt distributed in north margin of North China Craton. So, the traditional evolving model of North China Carton, which formed on this idea and the acquaintance about the collision of North China plate and Siberian plate, must be incorrect; 2 The age date show that the earliest magmatic activity began since late-Palaeozoic Permian, which is inconsistent with the previous idea that there were Caledonian and Hercynian active continental margin in the north of North China Craton and in the south Xingkai Massif. 3 the crust and lithosphere were thickened by the subduction and collision of Siberia plate and North China plate during Late Paleozoic. The magma is formed when the crust is heated and melts caused by thickened lithosphere delamination and caused the Asthenosphere upwelling. But only a little basaltic magma erupted, most magma underplate under the bottom of the crust. Thermal energy derived from basaltic magma underplating made the middle and lower crust melt partially and the late Permian-early Triassic granites is formed in large scale.

根据区域构造演化分析，并结合本文及他人高精度同位素年龄，我们对延边花岗岩形成的大地构造环境有了新的认识：1在华北地台北缘并不存在所谓的加里东花岗岩带，因此，建立在此之上的传统的华北地台北缘演化模式及有关西伯利亚板块与华北板块的碰撞拼合的认识也必然是不正确的；2华北地台北缘和兴凯地块南缘不存在加里东期和海西期花岗岩带，表明两地块边缘最早的花岗质岩浆活动始于晚古生代的二叠纪，即不存在传统观点所认为的加里东期或海西期活动陆缘；3晚古生代由于西伯利亚板块与华北板块的俯冲碰撞，致使地壳和岩石圈增厚，导致加厚岩石圈发生拆沉作用，使得软流圈上涌，加热地壳使之熔融形成岩浆，但玄武质岩浆少量喷出地表，大部分底侵于地壳底部，形成下地壳高密度的玄武质底侵层，玄武质岩浆底侵的热能引起中下地壳广泛部分熔融，形成大面积分布的晚二叠世—早三叠世花岗岩。

The explosively formed projectile with fins for a cover charge structure by LS-DYNA software which four covers were conglutinated on the liner was studied by three-dimensional numerical simulation. The mechanism of forming EFP with fins was discussed based on the curves of velocity and pressure vs time of the liners. A contrastive analysis was carried out on the three kinds of liners which include big-cone shaped liner, imperfect-sphere shaped liner and arc-cone shaped liner.

采用LS-DYNA对在药型罩上粘附隔板结构形成带尾翼型爆炸成型弹丸(explosively formed projectile，EFP)进行三维数值模拟，从药型罩微元压跨速度和压力的角度初步探讨了形成尾翼型EFP的机理，对同一直径的大锥角型、球缺型和弧锥结合型药型罩形成的尾翼型EFP进行了对比分析，三种结构药型罩均能形成较为明显的尾翼，其中大锥角型药型罩得到的EFP速度最高。

The dish washer includes one washer body with inside washing tank, rotary door in the front of the washer body, and one sealing latch set between the washer body and the door to raise the sealing property of the door. The sealing latch includes one hook unit set inside the hole on the washer body side, one sealing unit exposed outside the washer body and contacting closely to one side of the door in close state, one central slot for telescoping the hook unit, and one expansion joint in the joint part to avoid concentration of stress.

本发明包括洗碗机内部具备了洗涤槽的本体，设置在本体的前面转动的门，设置在本体前面和门之间，当关闭门时提高门和本体前面的封闭性的碰销；其中碰销包括：在本体前面一侧形成的插入孔中设置的挂钩部，露出于本体外部，在门关闭时，紧贴门一侧面的密封部，为了使挂钩在插入孔内直径方向伸缩，而在其中央部位形成的切缝，其特征在于密封部上形成了与切缝相通，防止挂钩伸缩时应力集中到挂钩部和密封部之间结合部位上的伸缩槽。

A motor shaft is arranged in the middle of a motor; the motor shaft is connected with the lower bracket by a connecting plate; the upper bracket is provided with a plurality of radiating holes; a flange of the lower bracket is formed at the external edge of the lower bracket and an axial hole is formed in the middle of the lower bracket.

本发明公开了一种吸尘器电机支架结构，包括上支架和下支架，在电机的中间设有电机轴，电机轴通过连接板与下支架连接，在上支架上形成多个散热孔，在下支架的外缘形成下支架凸缘，在下支架的中间形成轴孔。

Endospores are formed within the cell, one in each parent cell, and are surrounded by a thick coat containing dipicolinic acid.

内生孢子是在细菌细胞内形成的，且每一个母细胞只形成一个，形成后被含有2，6吡啶二羧酸的厚壁所包围。

Experiment three The Effect of Indomethacin on Hypha Formation when Exogenous PGE_2 Is Present In this experiment, to study the effect of Indomethacin on hypha formation after Indomethacin (2.0mM) and exogenous PGE_2 (300pg/ml) were added in RPMI1640 with crystal violet-based germ tube assay and to further interpret the mechanism of Indomethacin inhibiting hypha formation.

实验三在外源性PGE_2存在时消炎痛对菌丝形成的影响本实验主要研究在RPMI1640培养基中同时加入外源性PGE_2(300pg/ml)和消炎痛(2.0mM)，培养4h后用结晶紫芽管检测法定量分析消炎痛对菌丝形成的影响，以期能进一步说明消炎痛抑制菌丝形成的作用机制。

For example, it have not been pointed out whether the wavelength of signal light beams would effect the time of quasi-steady solitons; it have not been noticed that the electric field preserved in crystal might effect on forming photovoltaic solitons; it have not been reported the action of background light beams in forming screening-photovoltaic solitons and whether it can form polychromatic SPS, and so on.

例如准稳态孤子的形成过程中探测信号光的波长对孤子存在时间的影响；光折变晶体中原先驻留的内电场对形成光伏孤子的影响；背景光在形成屏蔽-光伏孤子中所起的作用以及复色光能否形成屏蔽-光伏孤子等等都未进行研究。

Research from the stability of the polymer gel system,this paper carried out the foll...

从研究聚合物凝胶体系稳定性出发本文主要开展了以下工作；(1)从聚合物类型(PHPAM、AP-P4和KYPAM-2)、分子量、水解度方面研究了聚合物凝胶体系的成胶性能，实验结果表明，KYPAM-2在60℃、80℃下与乙酸铬交联剂、70℃和90℃下与有机酚醛交联剂形成的凝胶体系30天粘度保留率85%—94%，而AP-P4聚合物在相同条件下形成的凝胶体系30天粘度保留率80%—90%；中、低水解度(15-25%)聚合物形成的凝胶稳定性较好(30天粘度保留率9036-94%)。

Methods The chondrocytes isolated from mini swines' ears were mixed with injectable biocompatible matrix,and the density of cell suspensions were 10,20,30,40,50,60,70×10 6/ml.

结果在动物自体内形成的软骨组织，与正常软骨组织有相似的组织学特性，形成软骨组织最适细胞浓度为50×106／ml，最佳形成时间是第6周。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。