腔

The fiber width increases all along,contrary to the fiber diameter and double wall thickness to diameter ratio.

枫杨纤维长度、宽度、腔径、双壁厚、长宽比、腔径比和壁腔比分别为1145um、26.9um、18.8um、8.1um、43.19、0.70和0.46。

The principal of buffer is described as follows.At impulsing down,the piston moves down and vacates the annular space.The pressure in respiratory cavity decreases to a certain level and the traveling valve opens.At that time,the liquids enter into traveling valve and cavity and the plunger is impulsed upward to carry out the gentle transient at the sudden change.When the upward impulsing begins,the respiratory cavity is subjected to pressure and the traveling valve closes.During the gradual pressure rising,the liquids in respiratory cavity effuse from the upper ventage and the sudden change of force-summing direction of plunger is relieved relying on the resistance of ventage.

其原理大致是：下冲程时，活塞向下运动，让出环形空间的体积，呼吸腔内压力下降，下降到一定水平后，游动阀打开，此时，游动阀和小孔同时进液，使柱塞在从上死点处突然改变方向向上运动时得到缓冲，实现了柔和过渡；当上冲程开始时，呼吸腔受压，游动阀关闭，在压力逐渐上升的过程中，呼吸腔内的液体从上部的小孔流出，并依靠小孔的阻力使柱塞受力突然换向得到缓冲。

The numerical results show that, after the hot intrusion reaches the cold wall, some accumulates in the cold top corner, since the cold boundary layer flow cannot entrain all of the hot intrusion.

结果表明：当热入侵流抵达腔体冷壁后，由于冷壁无法卷入所有的热入侵流，热入侵流在冷上角堆积并产生一个反向流动，在冷壁边界层附近形成一个顺时针涡，该涡在浮力效应驱动下可返回热壁，并在腔体的冷热壁之间形成了腔体尺度的流体振荡，即内重力波。

First of all, some structure parameters, such as the dimension scale of cavity walls, thelocation of primary flow injection holes, the entrance angle of main flow, and so on, havebeen studied, focusing on their influence to the cavity flow field, the forming of vortexes,and the pressure drop in the combustor.

首先研究了模型燃烧器中凹腔长度与前后壁面高度比例、腔内燃料与空气的入射位置、以及主流入射角度等结构参数对腔内流场变化、驻涡形成、以及燃烧器压损等方面性能的影响。

The main purposes of this study are to develop a method to control pollutant dispersion and to measure the control efficiency during the chamber preventative maintenance of a metal etcher.

实验以固定流量的1000 ppm追踪气体SF6在腔底连续释放，以了解反应腔的气罩效率或反应腔上方全开，在侧边视窗孔抽气时对污染物逸散的控制效率。

Holding the input energy and actuator volume fixedness, the active frequency has no effect on jet velocity. But the recovery stage time shorten with the increase of active frequency. So, the choice of active frequency is under consider of the temperature resistance for actuator.

在输入能量和腔体体积不变时，激发频率的提高对合成射流的最大速度没有明显的影响，但缩短了腔体内气体的冷却时间，实验时对激发频率的控制首要考虑腔体的耐温能力。

There also aresome of domestic research reports, but absence of a more systematic experiment studyfor two kind of typical unstable resonator, hard-edge output mirror resonator and Gaussoutput mirror resonator through the comparison.

国内也有一些研究报道，但对两种典型的非稳腔，硬边输出镜腔和高斯输出镜腔作较为系统的实验测量比较还没有。

The incision healed well, without serve immunological rejection. Four cases had hematocele of the articular cavity, which were regressed after puncturing of the articular cavity and packing with compression.

术后切口愈合良好，无明显免疫排斥反应发生，4例出现关节腔积血，术后1周行关节腔穿刺抽液、加压包扎，出院时关节腔肿胀基本消退。

Abstract］ Objective To discuss the self-restraint water pocket in the nasal sinuses endoscope postoperative and the effect of stanching bleeding.Methods 96 patients were divided into treatment group and control group,the treatment group was treated with self-restraint water pocket for stanching bleeding,the control group was treated with traditonal iodoform gauze.

目的 探讨自制水囊在内镜鼻窦手术后窦腔的填塞止血效果方法对96例鼻窦手术患者分治疗组和对照组，分别将治疗组窦腔给予自制水囊填塞止血，对照组窦腔给予传统的碘仿纱条填塞止血。

In the range from 0 to 25MPa, the linear degree of pressure-cavity length curve is 0.99996 and the sensitivity is 2nm/MPa . The temperature dependence effect of this sensor is small. In the temperature range from 22℃ to 200℃, the temperature sensitivity of the F-P cavity is about 0.03nm/℃.

实验结果表明，本文设计的微型EFPI光纤压力传感器性能良好，在0～25MPa范围内，压力—腔长关系曲线的线性度达0.99996，腔长一压力灵敏度为2nm/MPa；该传感器温度敏感性小，在22～200℃的温度范围内，腔长的温度敏感性约为0.03nm/℃。

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。