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Six days after inoculation, the cucumber root tip was slightly swollen and symmetrical root-knots were observed at the meristematic and elongation zones. Giant cells were differentiated by previous cambium cells in the center of the root; 10days after inoculation, symmetrical and secondary root-knots were observed at the root hair and upper zones. Vessels were separated by giant cells, around which protoxylem vessels were observed; l6days after inoculation, hypo-vascular tissue appeared earlier than normal; 20-30 days after inoculation, the vertical arrangement of vessels was disordered, shape was distorted and a new vascular tissue appeared in the cortex.

结果显示：接种后6 d的根尖分生区、伸长区出现膨大、对称的根结，根中心的原形成层细胞分化出巨型细胞；10 d在根毛区及以上部位出现既有对称又有偏于一侧的根结，周围有原生木质部导管出现，根结中巨型细胞阻断了导管；16 d次生维管组织提早出现；20~30 d导管纵向排列无序，形状扭曲，皮层中有新维管组织产生。

The superficial microvascular networks were sparser, while the subpleural microvascular networks were denser. The superficial blood vessels and the interlobular blood vessels were mutual transitional, and the anastomosing between the superficial blood vessels with the subpleural vessels. According to the branching sequence of the subpleural arteriole, it could be divided into the arteriole, terminal arteriole, precapillary arteriole and capillary in turn. The subpleural capillary networks were mainly web-like, while small holes were also found on the cast. The honeycomb vascular networks were various in size and form at a low magnification. The outline of alveolus, alveolar sac, alveolar duct and respiratory bronchiole and terminal bronchiole, made of microvascular networks, could be found in the cut surface.

胸膜面浅层的微血管网稀疏，深层的胸膜下微血管网致密；胸膜面浅层的微血管与小叶间隔的微血管之间相互移行，与胸膜下微血管之间形成吻合连接；根据胸膜下微动脉连续分支的顺序，常可将其分为微动脉、终末微动脉、毛细血管前微动脉和毛细血管四级；胸膜下毛细血管网主要以网络状的形式存在，但在铸型上均可见数量不等的"小孔状"结构；低倍镜下肺实质内微血管网呈现大小不等、形态各异的蜂窝状结构，可以见到由微血管网构成了肺泡、肺泡囊、肺泡管和呼吸性细支气管以及终末细支气管等结构的轮廓。

The vessels from the lung parenchyma branched into the pleural superficial vessels, the interlobular vessels and the subpleural microvessels. The subpleural arterioles also could be divided into arteriole, terminal arteriole, precapillary arteriole and capillary in turn. Most subpleural capillary meshes were web-like, and also the small holes and sieve-like meshes occurred in the subpleural microvascular networks. The interlobular blood vessels and the superficial blood vessels were mutual transitional.

从肺实质内穿出的微血管可发出分支至胸膜面浅层、小叶间隔和胸膜下微血管网中；胸膜下微动脉也可分为微动脉、终末微动脉、毛细血管前微动脉和毛细血管四级；胸膜下毛细血管网多数呈网络状，也可见到呈"小孔状"的结构和筛网状的血管网；小叶间隔的微血管与胸膜面浅层的微血管之间可以相互移行。

The tracheary elements in secondary xylems of Actaea asiatica root and rhizomes were observered with a scanning electron microscope and found to contain abundant types, which mainly included tracheids, tracheid-like vessels, fibriform vessels, and typical vessels. Of these types, the tracheids, tracheid-like vessels, fibriform vessels were first found. Scalariform perforation plates, reticulate perforation plates, mixed perforation plates and simple perforation plates were observed in the typical vessels and the reticulate perforation plates ,mixed perforation plates were first founded the lateral-wall perforation plates, multiple end walls and pit membrane vestige were also observed in the tracheary elements.

利用扫描电子显微镜对毛茛科类叶升麻根和根状茎次生木质部中的管状分子进行观察，发现其管状分子类型丰富，主要有：管胞、管胞状导管、纤维导管和典型的导管分子，其中管胞、管胞状导管和纤维导管为在该类群中首次报道；在导管分子中，存在着梯状穿孔板、网状穿孔板、混合型穿孔板和单穿孔板，其中网状穿孔板和混合型穿孔板为在该类群中的首次报道；对其导管分子上的侧壁穿孔板、多穿孔板和纹孔膜残余也进行了描述。

RESULTS: Fluorescein concentrated cell presented extensively around micro-vessels after injection of both FA and FD. The speed of diffusion of FD in the brain was faster than that of FA. After FA injection, fluorescein concentrated image presented also around vessels, which developed to the distal along vessels, those in the cortex developed toward cerebral surface and those in the white substance toward ventral basicranial vessels of brain. The speed and distance were all bigger than the simple diffusion.

结果：注入FA，FD之后均可见微血管周围广泛分布荧光浓集细胞；FD在脑内扩散速度大于FA；FA注入后还出现血管周围荧光浓集影像，并沿血管通向远处，在皮质者通向脑表面，在白质者通向脑腹侧颅底血管，速度与距离均大于简单扩散。

The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 130dB infrasound treatment In 1 day group, Bcl-2mRNA and P53mRNA were expressed lightly in CA1-CA3 areas in hippocampus and dentate gyrus. Blood vessels dilated lightly. In 7d group, Bcl-2mRNA and P53mRNA were more expressed in areas mentioned above. Dilation of capillaries and small vessels was more obvious. Bcl-2mRNA and P53mRNA were strong positive in endothelial cells of vessels. In 14d group, Bcl-2mRNA and P53mRNA expression was obviously increased in pyramidal cells of hippocampus and granular cells of dentate gyrus, showing deep blue staining. a The endothelial cells in some vessels were also strong positive for Bcl-2mRNA and P53mRNA. Dilation of capillaries and small vessels was lessened. In 21d group, Bcl-2mRNA and P53mRNA expression was decreased in pyramidal cells. In 28d group, little change about the expression and distribution of Bcl-2mRNA and P53mRNA was observed. Lots of Bcl-2mRNA and P53mRNA were scattered in cortex of temporal lobe around hippocampus and callosal gyrus area. Dilation of capillaries and small vessels was lessened obviously. The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 90dB infrasound treatment.

次声作用后Bcl-2mRNA和P53mRNA在海马的表达，16Hz、130dB次声作用1d组：两者在海马〓区和齿状回轻度表达，海马内血管轻度扩张；7d组：两者表达在上述区域较1d增多，微血管和小血管扩张较显，血管内皮细胞内可见呈强阳性表达的Bcl-2mRNA和P53mRNA；14d组：海马锥体细胞和齿状回颗粒细胞内Bcl-2mRNA和P53mRNA阳性表达明显增多，呈深兰色，在部分血管内皮细胞内两者强阳性表达，微小血管扩张状态较7d减轻；21d组：锥体细胞胞浆内Bcl-2mRNA和P53mRNA表达减弱；28d组：上述表达及分布与21d组相比无明显改变，海马周围颞叶皮层和扣带回区域亦可见大量散在分布的Bcl-2mRNA和P53mRNA表达，血管扩张状态已明显减轻。90dB次声作用1d-7d后，较对照组无明显变化，14d-21d后轻度表达，28d后，Bcl-2mRNA和P53mRNA表达较强。

To pay attention to carry out effective cardiopulmonary resuscitation, hemostasis by compression and deep vein intubation rapidly in the initial stage of emergency. The carotid shunt tube plays an important role in severe carotid injury and re-establishment process. We use external jugular vein to transplant and re-establish,which are rung with artificial blood vessels for the long distance carotid injury and achieved the best result. We expose as fully as possible for the hepatic venae and the posthepatic post caval injury,and adopt effective methods to stop bleeding and repair. The application of blood shunt pump could raise the success rate for those severe patients. The self-double vastransplantation with both ends being all trousers-style one opening solve some problems such as there are no suitable caliber self-transplantation blood vessels and the artificial blood vessels are easy to occur obliteration for long-term and so on for the great or middle blood vessels.We use improved Fogarty duct and anterograde intubation to eliminate thrombus could eliminate thrombus effectively and avoid accessory injury for the deep vein injury and extensive thrombosis.

抢救初期要注意进行有效的心肺复苏、压迫止血和快速进行深静脉插管；颈动脉转流管在严重颈动脉损伤重建过程中有重要作用；对长距离颈动脉损伤用颈外静脉移植外环包人造血管重建，可取得最佳效果；对肝静脉及肝后下腔静脉损伤，要充分暴露，采用有效方法止血和修复，对病情极危重的凶险性出血者，血液转流泵的应用可提高成功率；对大、中血管损伤，两端均为裤式单开口自体双血管移植，解决了无适宜口径自体移植血管和应用人造血管远期易闭塞等问题；对深静脉损伤并广泛血栓形成者，应用改进的Fogarty导管和顺行插管取栓法，可有效取栓并避免了副损伤。

To pay attention to carry out effective cardiopulmonary resus-citation,hemostasis by compression and deep vein intubation rapidly in the initial stage of emergency.The carotid shunt tube plays an important role in severe carotid injury and re-establishment process.We use external jugular vein to transplant and re-establish,which are rungwith artificial blood vessels for the long distance carotid injury and achieved the best result.We expose as fully as possible for the hepatic venae and the posthepatic post caval injury,and adopt effective methods to stop bleeding and repair.The application of blood shunt pump could raise the success rate for those severe patients.The self-double vastransplantation with both ends being all trousers-style one opening solve some problems such as there are no suitable caliber self-transplantation blood vessels and the artificial blood vessels are easy to occur obliteration for long-term and so on for the great or middle blood vessels.We use improved Fogarty duct and anterograde intubation to eliminate thrombus could eliminate thrombus effectively and avoid accessory injury for the deep vein injury and extensive thrombosis.

抢救初期要注意进行有效的心肺复苏、压迫止血和快速进行深静脉插管；颈动脉转流管在严重颈动脉损伤重建过程中有重要作用；对长距离颈动脉损伤用颈外静脉移植外环包人造血管重建，可取得最佳效果；对肝静脉及肝后下腔静脉损伤，要充分暴露，采用有效方法止血和修复，对病情极危重的凶险性出血者，血液转流泵的应用可提高成功率；对大、中血管损伤，两端均为裤式单开口自体双血管移植，解决了无适宜口径自体移植血管和应用人造血管远期易闭塞等问题；对深静脉损伤并广泛血栓形成者，应用改进的Fogarty导管和顺行插管取栓法，可有效取栓并避免了副损伤。

Quantitative description and 3-D reconstruction of heart vessels are based on thinning vessels to skeletons with only one pixel width. But vessels extraction from angiogram decides the accuracy of vessels skeletonization.

利用心血管造影图像定量描述心血管病变和重建三维心血管，首要任务是将造影图像中的心血管表述成单个象素宽的心血管骨架，而心血管的提取又是心血管骨架提取和决定其提取准确性的关键。

At 24 h, Ang1 was expressed mainly in the lens, optic cup, mesencephalon, ventral part of hindbrain, and myotomes in the somites, while zfTie2 was mainly expressed in intersomitic vessels including dorsal aorta and axial veins, and sprouting vessels from the dorsal aorta in the trunk. VEGF was expressed mainly in the lens, optic cup, mesencephalon and myotomes in the somites, while zfFlk1 was mainly expressed in intersomitic vessels including dorsal aorta and axial veins, and sprouting vessels from the dorsal aorta in the trunk.

结果从受精卵胚胎发育第12小时可见血管内皮细胞生长因子和血管发生素1及其相应受体flk1和Tie2的表达；在受精卵胚胎发育的第16小时，血管内皮细胞生长因子和血管发生素1主要在头部和尾部胚芽表达；第24小时在眼球、视窝、中脑、后脑的腹前侧和肌节中表达，Tie2和Flk1主要在肌间背部动脉血管、躯干新生血管芽和轴向静脉中表达。

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。