四部

Stamens 6 or (8-)12-16(-24), slightly tetradynamous or equal in length; filaments dilated at base; anthers oblong or linear, obtuse at apex.

雄蕊6或(8-)12-16(-24)，稍四强雄蕊或等长；花丝膨大的在基部；花药长圆形或线形，先端钝。

Stamens 6, erect, slightly tetradynamous; filaments not dilated basally; anthers oblong, obtuse.

雄蕊6，直立，稍四强雄蕊；花丝基部不扩大；花药长圆形，钝。

Stamens 6, tetradynamous; filaments usually not dilated at base; anthers ovate, oblong, or linear, obtuse at apex.

雄蕊6，四强雄蕊；通常的花丝不膨大的在基部；花药卵形，长圆形，或线形，先端钝。

A four-month-old female baby was diagnosed to have an unreduced intussusception after a barium enema.

摘要一位四个月大的女婴被诊断为肠套叠，因观察钡剂复位仅呈部份成功，而接受开腹探查手术。

Results Among the 24 cases of medulloblastmas,9 (37.50%) were located in cerebellar hemispheres,7 (29.16%)in the fourth ventricle and 7 (29.16%) in vermis.

结果 在全部24例病例中，发生于小脑半球9例(37.50%)，第四脑室7例(29.17%)，小脑蚓部7例(29.17%)，1例(4.17%)累及多部位。

From an imaging perspective, these patients have either complete or partial agenesis of vermis, which results in triangular-shaped mid fourth ventricle and a bat-wing appearance in its superior aspect.

从影像学角度来看，这些病人都会有完全或部分的小脑蚓部发育不良，这导致四脑室中部呈三角形样改变，上方呈蝙蝠翼样改变。

The largest cisterna magna measurement should be no more than 10 mm in depth and no less than 2 mm.(7) The fourth ventricle should not communicate with the cisterna magna, after 18 weeks, in a standard plane, but should be separated by the intact cerebellar vermis.

小脑延髓池深度最大径线应不大于10mm，且不小于2mm.18周后，在标准切面上，第四脑室不应与小脑延髓池相交通，而应由完整的小脑蚓部相分隔。

Results The mortality significantly increased and the prognosis was bad in patients whose manifestations were as followings:bleeding volume≥15 ml, bleeding location was cerebellar vermis,hematoma involved brainstem and broke i...

结果 出血量≥ 15ml，出血部位位于小脑蚓部，血肿累及脑干和破入第四脑室，伴急性阻塞性脑积水的患者预后不良，死亡率明显增高。结论小脑出血部位及出血量是影响预后的主要因素。

In the first part there is an introduction in brief to the history and present market status of the Chinese motorcycle industry; In the second part, there is an introduction in brief to the international motorcycle market, analyzing the marketing characteristics of the Chinese motorcycle export business, find out the key characteristics which influence the Chinese motorcycle export; In the third part, through the analogizing and analyzing on the Chongqing motorcycle export, find out the main problems which have hindered the expansion of the Chongqing motorcycle export; In the forth part, based on the analysis of the China"s entry to "WTO which will influence the motorcycle and its spare-part industry, make out some new basic strategy and further countermeasures to the expansion of the Chongqing motorcycle in overseas market.

首先，在第一部份中简要介绍了我国摩托车工业的发展历史和市场现状，；在第二部分中，介绍了国际市场的摩托车贸易现状，对中国摩托车出口的国际市场特点进行研究，分析影响中国摩托车出口的各类因素；在第三部分中，通过对重庆市摩托车近期出口现状的分析，指出扩大重庆摩托车出口所面临的瓶颈问题；第四部分，在对加入&WTO&以后我国摩托车工业可能受到的影响进行分析的基础上，为扩大重庆摩托车产品的出口提出一些新的思路。

By now, Albrecht Durer's hundreds of masterful portraits, pen and silver-point sketches, watercolors, charcoals, woodcuts, and copper engravings hang in every great museum, but the odds are great that you, like most people, are familiar with only one of Albrecht Durer's works.

四百五十多年过去了，阿尔布雷特·丢勒有成千上百部的杰作流传下来，他的速写、素描、水彩画、木刻、铜刻等可以在世界各地博物馆找到；然而，大多数人最为熟悉的，却是其中的一件作品。

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。