查询词典 sectional area

In this paper, new approaches were attempted to improve the accuracy in the measurements of both tree ring width and the sectional area of bark.

利用校正系数对传统方法测定的结果进行校正，或者在直径测定时采用符合实际直径的方位；对于有裂隙的树皮（假设内皮厚度为0）的断面积，把目前的去皮半径当作带皮半径进行计算，而不是带皮断面积和去皮断面积之差。

The potential prognostic factors (nasal obstruction, cross-sectional area of nasal cavity, rhinosinusitis severity, preoperative olfactory loss, nasal polyps, allergic rhinitis, concurrent septoplasty and turbinal surgery, postoperative steroid treatment) for improvement in olfaction after FESS were also evaluated in these patients.

手术六个月后，这些病患的嗅觉功能再用同样方法来评估，同时分析可能的预后因子〈鼻塞、鼻腔截面积、鼻及鼻窦炎严重度、术前嗅觉丧失程度、鼻息肉、过敏性鼻炎、附带鼻中膈鼻甲手术、术后类固醇治疗〉对术后嗅觉功能改变的影响。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

When a ductile material is tested, the reduction in cross-sectional area due to waisting causes an increased stress without an increased force, to ensure that extension proceeds uniformly.

当韧性材料被测试时，由于颈缩使横载截面面积减小，以至在受力没有增加的情况下引起应力的增加，以保证延伸继续如常进行。

METHODS: The shape of the human ankle plantar flexor muscle was estimated in vivo by CT, and the cross-sectional area of the muscle and the circumference of the lower leg could be calculated by Xiphoid CT software.

采用螺旋CT对受试对象双侧小腿进行不间断连续扫描，影像分析采用Xiphoid CT专用图像分析软件，由CT图像计算得出小腿围、踝关节跖屈肌横截面积，根据体视学原理采用数值积分法计算跖屈肌群体积。

The design cross sectional area of shunt is calculated by the product of carrying rated current ratio and Bi-2223/AgAu matrix and shunt resistivity ratio. When quenching happens, shunt carries more current to void burn out or overheat of superconductor. Shunt which provides an enough heat sink can restrain the temperature rising of HTS section too fast.

分流器横截面积确定基于分流器与Bi-2223基体AgAu的电阻率对失超后电流分配比，这样保证超导体转人电阻态后分流器分流大部分电流，同时由于分流器具有很好热沉作用，抑制超导体温度迅速上升，从而避免超导材料烧毁或过热。

Nuclear cross-sectional area and perimeters were measured morphometrically, and the binucleated cardiomyocytes were counted.

对细胞核中心和周边进行形态学测定，并且计算双核细胞数目。

It was found that these as-prepared MgO materials replicated the biomorph of pinewood, and their frameworks were constructed by plenty of claviform nanoparticles with a similar sectional area, which were different from those of MgO prepared by directly thermal decomposition of MgO precursor.

结果表明，用该方法制备出来的MgO样品具有松木的生物形态，由横截面积比较均一的棒状纳米颗粒构成，不同于乙酸镁直接焙烧得到的MgO样品。

Effects of exercise on limb muscle during 30 d head-down tilt bed rest We observed and compared the effects of lower limb muscular exercise with bicycle ergometric exercise during 30 d HDT bed rest on the changes of perimeter of leg, cross-sectional area of leg and mean amplitude of calf.

30 d头低位卧床期间体育锻炼对下肢肌肉的影响本实验进行了30 d头低位卧床，观察和比较了卧床期间下肢肌力训练和自行车功量计训练对小腿围径、小腿截面积和腓肠肌肌电平均振幅的影响。

In this way, the properties of the flow are near isentropic, and are simply affected only by the changing cross-sectional area as the fluid moves through the nozzle .

这样一来，性能的流动是近等熵，纯粹是受影响的只有通过不断变化的截面积为流体的举动通过喷嘴。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。