扫描长度

Seen from the FESEM and TEM that the production was largely tetrapod nano-ZnO and its stitch was about 100 to l5Onm with the diameter 20 to 30nm.

场发射扫描电镜及透射电镜分析发现产物基本是四针状的纳米ZnO，针脚长度约100~150nm，直径为20~30nm。

By using the technics of scanning electron microscope, the shape, amount and distribution of the antennal, maxillary and labial palps, urogomphi sensilla of the larva Carabus prodigus were observed and their function were discussed.

摘 要：应用环境扫描电镜对奇步甲幼虫触角、下颚须、下唇须和尾突感器进行观察，对各类感器的数量、长度及分布特点等进行描述，并探讨各类感器的功能。

To ensure the length of buncher , maximum voltage of beam bunching , the maximum amplitude of the scan voltage amplitude with bunch method of sine wave bunching klystron .

采用正弦波速调管聚束理论计算确定聚束筒长度、聚束电压最大幅值、扫描电压最大幅值等主要特性参数。

We chose 15 fresh adult knee samples without obvious genual diseases ( 5 examples of extended position,5 examples of flexed 45 degrees position, 5 examples of flexed 90 degrees position ), embed the samples of different functional positions with 5% blue glutin, and obtained 0.5mm sample by mill cuts technology at low temperature condition.

对无明显膝关节病变的成年志愿者60人，在MRI上选用SE-T1加权，做层厚2.0mm无间距扫描，TR1500ms，TE15ms。测量膝关节由全伸位到屈曲位前、后交叉韧带的长度和厚度，并观察髌股位置关系。

The regurgitant volume was calculated by temporally integrating the instantaneous flow volume rate of each frame during systole.

建立了基于经食道旋转扫描二维和经胸实时三维超声多普勒血流图像获取方法和图像插值、配准算法获得体数据，经多维重建描述二尖瓣反流速度的空间分布，立体观察返流的时相、方向、反流束长度、面积、体积、空间传播和严重程度等；通过重建反流后的速度场，从血流动力学角度分析了二尖瓣反流的性质，计算偏心反流束的湍流强度，利用反流束角度和湍流强度对计算结果进行修正；基于实时三维彩色多普勒成像技术，利用控制体原理对二尖瓣反流束在反流瓣口横断面的速度分布进行空间与时间积分获得二尖瓣偏心性反流的每搏反流量。

The accurate position of wholly impacted and unerupted teeth in bone can be demonstrated clearly by 3DX-CT. It might play an important role in the diagnosis and treatment of wholly impacted and unerupted teeth.

牙科三维CT扫描可以完整地显示埋伏牙的位置，形态以及进行角度、长度等的测量，有利于助萌方案的设计与实施。

The roughness shape of ceramic machining surface is analysed by four kinds of test methods: surface profile, scanning electron microanalyses, bearing ratio curve and profile ratio of peak to valley. Ceramics are machined by"plateau honing"to obtain the plateau property and wearability of machining surface. The machining surfaces own its functional surface.

采用表面微观轮廓、扫描电镜观察、表面支承长度率曲线以及表面轮廓峰谷比等四种研究方法，详尽分析了陶瓷材料加工表面的轮廓形状特征，并采用平顶珩磨加工方法，获得陶瓷加工表面的平顶特性，提高了加工表面耐磨性。

Field emission scanning electron microscopy shows the diameter of Bi2Sr2CaCu2Oy nanowires is nearly 20 nm and the length is up to 1 μm. High-resolution transmission electron microscopy also shows the configuration of the polycrystalline nanowires with average diameters of 20nm.

利用场发射扫描式电子显微镜及高解析度穿透式电子显微镜来观察奈米线的外观及结构，奈米线的粗细约为20奈米，长度约为1微米，为多晶结构。

A varifocal f-theta lens was designed for Nd:YAG laser making scan focusing system, so that it apply to differ making area but change a lens necessarily. the system consists of four lens ,made by glass BK7, SF18 and SF11. The total length of the system is 122.96mm, working at 1064m.

为Nd：YAG激光打标机设计了变焦距f-theta镜扫描系统，以使它适用于不同的打标面积而不必更换镜头，系统由四片透镜组成，材料分别为BK7，SF18和SF11，系统总长度为122.96mm，工作波长1064nm。

Methods:Axial and coronal scaning were performed in 50 persons (100 ears),and facial nerve canal was observed with MPR in multiple angles.

对50例（100耳）进行了轴位、冠状位扫描，并对面神经管进行了多角度的MPR观察及测量各段的长度与角度。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。