无向图

The inner flow field of modified Perspex impeller of a centrifugal pump was measured by advanced PIV system, and the absolute speed vectorgraph and original data of the axial eddy were acquired.

采用先进的粒子图像测速系统对普通叶轮改型设计后的有机玻璃叶轮内部流场进行无接触测量，获得轴向旋涡流绝对速度矢量图及原始数据。

Results:(1) cerebrovascular syphilis 1 case,tabes dorsalis 2 cases;(2) Inall cases,Serum and cerebrospinal fluid syphilis antibody reaction showed positive; CSF protein content was increased significantly,and cells increased (3) MRA and DS...

结果(1)脑血管梅毒1例，脊髓痨2例；(2)3例血和脑脊液的梅毒抗体均为阳性；脑脊液蛋白含量增加、细胞数增多；(3)脑血管梅毒患者MRA及DSA显示左大脑中动脉M1段闭塞；左大脑前动脉及左大脑后动脉通过皮层支向左大脑中动脉供血区代偿供血；(4)2例脊髓痨患者头颅及胸髓MRI无特殊发现，肌电图及周围神经活检不支持周围神经受损。

Results:(1) cerebrovascular syphilis 1 case, tabes dorsalis 2 cases;(2) mall cases. Serum and cercbrospinal fluid syphilis antibody reaction showed positive; CSF protein content was increased significantly, and cells in creased (3) MRA and DSA of cerebroascular syphilis show that Mi segment of the left middle cerebral artery is blocked. The left posterior cerebral artery and the left anterior cerebral artery compensate blood supply for the left middle cerebral artery through the conical branch.(4) MRI of head and thoracic cord was normal in 2 cases of tabes dorsalia. Result of EMG and biopsy of suml nerve not manifest damage of peripheral nerveous system.

结果：(1)脑血管梅毒1例，脊髓痨2例；(2)3例血和脑脊液的梅毒抗体均为阳性；脑脊液蛋白含量增加、细胞数增多：(3)脑血管梅毒患者MRA及DSA显示左大脑中动脉M1段闭塞；左大脑前动脉及左大脑后动脉通过皮层支向左大脑中动脉供血区代偿供血；(4)2例脊髓痨患者头颅及胸髓MRI无特殊发现，肌电图及周围神经活检不支待周围神经受损。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。