中心线

Resource of Medicinal Plants of Caprifoliaceae and Its Utilization in Ziwuling Forest District of Gansu Province

指胎体帘布层和缓冲层相邻层帘线交叉，且与胎面中心线呈小于90℃角排列的充气轮胎。

The results show that: Near the slot exit, three synthetic jets couple to one jet and move downstream. Two synthetic jets on both sides are limited and rolled by the middle synthetic jet until they merge together into one centrosymmetric synthetic jet.

研究结果表明：三股自耦合射流都在出口附近耦合成一股射流向下游运动，两侧的射流受到中间一股射流的卷吸融合在一起，融合后仍然是一股沿中心线对称的自耦合射流。

The surface of image can be looked as a curved surface, and we can simulate a conicoid function in local area. Based on this function we can estimate the gradient and the curvature of the curved surface points, and set proper thresholds of gradient and curvature, we can detect the centre lines of roads with correlative process including removing small areas, area growth, thinning, etc. Lastly through seting proper thresholds of the gradient and the curvature again, the original road junctions can be detected and then verified by the road lines detected formerly.

基于微分几何的道路交叉口识别方法：把影像的灰度表面看作是一个曲面，在局部区域内拟合一个二次曲面函数，通过该函数来估算梯度和曲率并设定合适的梯度和曲率阈值来检测道路中心线，并进行相关处理，例如去除小区域、区域增长、细化等，然后再设定合适的梯度和曲率阈值，检测出初始道路交叉口，并用检测出来的道路来进行确认。

Its precision mainly lies on the Abbe Error caused by the offset between the centerline and the mobile line of the capacitive-gate ruler, the heeling error of the guide mechanism, and the error caused by the dilatometric change of parts resulted from the temperature change.

主要在于它的精度造成的阿贝误差之间的中心线与电容栅尺移动线偏移，指南的机制倾斜误差，以及零件的热膨胀变化引起的温度变化导致的错误。

Actuation lengths are dimensioned from centerline of switch upper mounting hole as shown here.

驱动长度尺寸从交换机上安装孔的中心线所示。

The legs are parallel until gaiting narrows the track in proportion to increasing speed, then the legs come in under the body but should never cross.

行进速度慢时，四肢相互平行；行进速度加快时，四肢的落地点趋向身体的中心线，但不相互交叉。

On the basis of consulting lots of home and oversea data, using the finite elementmethod, this dissertation comprehends profoundly the dynamics and stability of curved pipes conveying fluid which centreline is inextensible and which boundary condition is clamped-free, clamped-clamped, clamped-pinned, pinned-pinned that are constantly used in engineering.

本文在查阅大量国内外研究资料的基础上，利用有限元法对中心线不可伸缩的固定-自由、固定—固定、固定—铰支、铰支—铰支四种工程中常见边界条件的输液曲管的振动及稳定性进行深入研究。

It was founded that the hardness distribution is approximately symmetrical to the center of welding line , the weakest zone of the whole joint is about 10mm from the center of the welding line . The HAZ of the welding line has an intenerate zone. the center of the welding line presents a typical dendritic casting structure.

结果表明：焊接接头的硬度以焊缝中心线为对称轴呈近似对称分布，焊接接头的最薄弱环节位于距焊缝中心约10mm处，焊接接头的热影响区内存在一个软化区。

For Shanghai is located near the central line of the total eclipse belt, a VLBI experiment for ionospheric Total Electron Content measurement has been carried out with participation of Shanghai, Urumqi and Kashima stations.

上海位于此次日全食带中心线附近，为此，上海佘山站、乌鲁木齐南山站和日本鹿岛站开展了VLBI联合观测实验。

It sets up the single laneway model by combining the ides of loading the section over the point of laneway center line, solving the problem of nodical modeling by using the curve interpolation, and making the collision test came true when ramble by using the typical surround box method.

结合巷道中心线节点上加载断面的思想建立了单一巷道模型，利用曲线插值的方法解决了交点建模的问题，用经典包围盒法实现了漫游时的碰撞检测。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。