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In our country, with the velocity and axis load increase, making the rail failure and fatigue deteriorate accordingly, so the detecting period diminishment is on trend. It is obvious that making research on ultrasonic detecting is great important to guarantee the railway in sound operation.

在我国，随着列车速度提高和轴重的增加，钢轨伤损发展速度也相应加快，致使检测周期亦有缩短的趋势，开展钢轨探伤，是保证铁路畅通运行的重要措施。

Among 465 children who were regularly followed up for a period of 3 years or more at the clinic, 37 eyes of 23 children showed significant astigmatism changes of 1 diopter or more in amount or 15 degrees or more in axis.

在465位於门诊追踪了3年以上的儿童中，23位儿童的37只眼睛表现1 Diopter以上的度数或15度以上的轴度的散光变化。

The axis was significantly elongated with the increasing of diopter.

眼轴随屈光度的增大而延长，差异非常显著。

It was found that, for most subjects in the group, astigmatism changed in the with-the-rule direction, the mean change being -0.036 DC at axis 176 deg for each dioptre of accommodation response.

研究发现，多数病例都发生了循规性散光的改变，每矫正1个屈光度，循规性散光平均改变-0.036DC 。

The dipole does not radiate energy in the direction of its axis.

偶极子在它的轴的方向上不发射能量。

Additionally, the hinge will point north, and the diptych will be angled so the gnomon is parallel to the Earth's axis of rotation. At solar noon, sunrise and sunset, the latitude adjustment of the diptych can't affect the time of either sundial, but at 9am and 3pm, each degree of latitude error (from holding the sundial at the wrong angle) creates four minutes of difference between the two faces.

另外，当绞链朝向北方，摺叠式日晷被旋转了一个角度，晷针才能与地球的自转轴平行，则当正午、日出与日落时，摺叠式日晷的时间不会受到纬度改变的影响，但是在早上9点和下午3点，纬度每偏差1度，在两个晷面上的时间便会相差4分钟(肇因於日晷在错误的纬度上)。

The direction of the maximum principal compressive stress axis in the area is trending NEE.

从浅源地震的震源机制分析发现，研究区平均最大主压应力方向为NEE-SWW向。

Through synthetical analysis of solutions of focal mechanism and the study of crustal deformation observation data, the recent stress field of hypocenters in Fujian and its coastal area has been obtained, which is considered to links up the stress field in Taiwan and Taiwan Strait, and the dominant direction of axis of principal compressive stress is NW-SE.

综合地震震源机制解和地壳形变观测资料的研究，求得福建及其沿海地区现代震源应力场，认为这与台湾地区、台湾海峡应力场相互衔接，主压应力轴优势方位为NW-SE向，力轴仰角较小，应力场近于水平挤压，形变场反映近期福建沿海亦受北两方向，接近与海岸垂直的挤压力。

By using the computer emulation technique, This paper researched design parameter (the equivalent radial or axial direction stillness , the damp parameter, the bearing pre-tightening force, the span, the extra centralized mass and damp) influence law on dynamical characteristic of the principal axis system, which made a meaningful explorati.

采用计算机仿真技术，研究轴承等效径向刚度与阻尼参数、轴承预紧力、跨距，附加集中质量和阻尼等设计参数对主轴系统动力特性的影响规律，为主轴系统的动态优化设计进行了有意的探索。

Nozzle distribution design, picking the 3D placement points of nozzle on solid directly and adjusting position parameter, direction parameter freely, it will display the axis direction of nozzle momentarily.

布置喷嘴设计，直接在三维实体上点选放置点，随意调整位置、方向参数，实时显示喷嘴轴线方向。

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。