导管

First neurotrophic factors could be concentrated within nerve conduits. Second fibre-bridge to anastomose two parts of nerve gaps could be formed ecxactly. Third operation of nerve conduits could be transplanted easily.

神经导管一方面能使神经营养因子在导管内积聚，浓度增高，另一方面引导神经缺损两端准确对合，同时导管的植入操作简单，可以减少手术对神经的损伤。

It was observed that the influence of bud and its position on the healing process of grafting unions using hardwood sectioning method, and found that:(1) bud of a scion and its position to the graft unions have no influence on callusing formation of the isolation layers, and the early differentiation of cambia;(2) a scion bud closer to the grafting union would promote the formation of more compacted callus cells and the earlier formation of callus bridges;(3) conduit differentiation in grafting unions of lower-bud scions was later than that of other treatments.

利用滑动切片法对芽子有无及芽位对嫁接愈合过程的影响进行了观察，发现：(1)接芽有无及芽位对隔离层及愈伤组织形成和形成层的早期分化没有影响；(2)芽或去芽的芽位距接口近，可以促进愈伤组织的紧密连接，即愈伤组织桥的形成；(3)低位芽枝嫁接体中导管分化较晚，而其它处理导管的分化几乎是同时发生的，而且导管首先出现于愈伤组织薄壁细胞中。

With certain shapes of or canula, elongated caps are made to cover both canula and threaded portion, and seal the canula at its top.

根据管口和导管的不同形状，可以制造细长的管盖以覆盖导管和螺纹部分，并在顶部封住导管。

With certain shapes of nozzle or canula, elongated caps are made to cover both canula and threaded portion, and seal the canula at its top.

根据管口和导管的不同形状，可以制造细长的管盖以覆盖导管和螺纹部分，并在顶部封住导管。

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 performance of the CNGs, including transmission efficiency, neutron flux, flux spectrum, divergency, uniform and gravity effect, have been analysed technically.

在满足导管出口中子束的均匀化效果前提下，模拟计算出弯导管后的直导管的最佳长度。

Almost four fifth (79.2%) of 586 PCVCs were removed electively and one tenth was due to either mechanical problems (10.7%) or suspected catheter-related infection (10.1%). Of 586 PCVCs, catheter-related sepsis was confirmed in 3.4%(20/586), or 2.1 per 1,000 catheter-days.

PCVC拔除的原因：在586条导管中79.2%是因不再需要，约各十分之一则是因机械问题(10.7%)及怀疑与感染有关(10.1%)；证明与导管有关的败血症占3.4%(20/586)，或2.1每千导管天。

The TTB-USA we used in our study is the production of IBI corporation, it has two electrode at the tip of a 7F catheter, its tip and ablation temperature can be controlled.

本实验应用的是一种新型的超声球囊导管(through the balloon ultrasound ablation system，TTB-USA)，它将一个换能器安放在7F电极导管顶端，外面用一弹性良好的球囊包裹，在造影的引导下，把带有球囊的导管顶端置放于需消融处，用稀释的造影剂充盈球囊，然后发放超声波产生一个环状损伤，达到阻断电传导的目的。

Methods insert the stomach tube nasal cavity, with the help of intubating ferceps, take the stomach tube out of mouth cavity from the posterior wall of dysphagia, insert trachea catheter (cid 7.0~7.5) to esophagus, under the help of trachea catheter, insert the stomach tube to esophagus then take the trachea catheter out of the esophagus and vertical, cutting off, in the course of into esophagus.

经鼻腔插入胃管，用插管钳将胃管从咽后壁前取出口腔外，用id 7.0～7.5的气管导管插入食管，在气管导管诱导下将胃管经气管导管插入食管，然后将胃管向食管内送进，同时将气管导管退出，将胃管置入相当合适的深度后，固定胃管。

In this study, we used poly L-latcide, poly DL-latcide-co-glycolide 75:25 (PLGA7525) and poly DL-latcide-co-glycolide 50:50 (PLGA5050) during citric acid inducing ammonium bicarbonate gas forming process to form porous polymer film, and rolled the porous polymer film to make nerve conduits with pores and multi-layered. Electron Spectroscopy for Chemical Analyzer and Attenuated Total Reflectance – Fourier-Transform Infrared Spectrometer were employed for determining elements' functionabilities and chemical compounds. Charge Coupled Device camera and Scanning Electron Microscope were employed for macroscopic and microscopic morphologies and structural observation. Differential Scanning Calorimetry was employed for measuring glass-transition temperature. Nano-indentation system was employed for measuring elastic modulus and hardness. Biodegradation and water absorption ratios were measured to analyze their chemical properties and SEM was employed for microscopic morphology of the tested nerve conduit.

本研究将以聚乳酸、聚乳酸-聚甘醇酸共聚合物（75：25）、聚乳酸-聚甘醇酸共聚合物（50：50）做为研究材料，以柠檬酸诱发碳酸氢铵发泡之气泡成型法制作具有相连通孔隙之高分子薄膜，再将高分子薄膜卷制成特殊多层的导管，制作具有多层孔隙之新型神经再生导管，以电子能谱化学分析及减弱式全反射-傅立叶转换红外线光谱分析进行成份分析及化学元素测定；以电荷耦合元件摄影机、扫瞄式电子显微镜进行多层孔隙型神经导管巨观及微观形态结构观察；以示差扫瞄热量量测分析玻璃转换温度、奈米三维量测弹性模数及硬度；以及进行降解性质测定，并以扫瞄式电子显微镜进行降解后之导管微观结构形态观察。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。