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- rotational axis precession 自转轴进动
- The rotational angle of a ball around its rotational axis. 转轴角-----球旋转时转轴的倾斜的角度。
- The centre of gravity is displaced by a weight below the rotational axis. 调节旋转轴之下的一个重物,使重心发生位移。
- For those who haven't heard the word, "precession" is when an object with a nonspherical shape wobbles around its rotation axis. 如果你还不了解“进动”这个词,进动指的是物体绕它的旋转轴有非球形的摆动。
- For the Earth, the rotational axis tilts 23.5. As a result, there is no seasonal change in Venus. 地球的自转轴倾角为23.;5;所以金星并没有四季之分。
- Either of the regions contiguous to the extremities of the earth's rotational axis, the North Pole or the South Pole. 南极,北极与地球的自转轴的两端相连的地区中的任一地区,即北极或南极
- The upward angle at which the rotational axis (PAP) tilts off the horizontal upon release of a hook ball. 轴倾角-----球离手时旋转轴(PAP)相对于水平线的向上倾斜的角度
- Uanus is the only planet in our solar system with its rotational axis tilted over sideways. 天王星是我们太阳系中唯一一个轴线倾斜近乎水平的行星。
- Magnetic fields might also squeeze matter outward along the rotational axis in two polar jets. 例如,磁场或许会利用新生中子星的转动能量,多推震波一把。
- The equatorial bulge, the rotation axis' angle of inclination to the ecliptic plane, the gravitational tidal forces of the Sun, Moon and planets, have an affect on the Earths' orbit that produces the famous precession of the equinoxes. 赤道凸出,对黄道平面的倾斜旋转轴角度,太阳、亮和行星引力潮汐力,作用影响地球轨道,产生著名的岁差。
- Study Design. Different geometrical and biomechanical ealuations were performed to determine the axial rotational axis of the thoracic spine. 研究设计:我们用不同的几何力学和生物力学方法来测定胸椎的旋转轴。
- Since the rotational axis of the Earth is tilted from the revolution axis by 23.5, the Sun, for example, rises at different directions at different times during the year. 由于地球的自转轴相对于公转轨道平面倾斜了23.;5度;再加上地球的绕日运动;所以太阳东升的方位角会随日子改变。
- On this day, the earth's angle to the sun was perpendicular to its rotational axis, so that the sun shines equally on the northern and southern hemispheres. 这一天,地球与太阳的角度与其旋转轴垂直,因此太阳均等地照耀着北半球和南半球。
- Having or constituting a support with two perpendicular axes, one of which is parallel to the earth's rotational axis. 赤道平面上的由两条互相垂直的轴支撑的,其中一条与地轴平行
- Having or constituting a support with two perpendicular axes,one of which is parallel to the earth's rotational axis. 赤道平面上的由两条互相垂直的轴支撑的,其中一条与地轴平行
- The goal is to find the optimum rotation axis to avoid lens barrel distortion (aka parallax error) in your shots. 我们的目标就是找到最佳的旋转轴,以避免镜头的桶状变形(也被称为视差)。
- The tripod and head's rotation axis runs through the center column of the tripod. 三脚架和云台的旋转轴穿过三脚架的中柱。
- Angles are measured clockwise when looking along the rotation axis toward the origin. 角度按照沿旋转轴向原点方向看的顺时针方向测量。
- By analyzing the scanning galvanometer the effect of offset between reflector surface and its rotate axis is given quantitatively. 通过对扫描振镜的分析,定量给出了反射镜反射面与振镜转轴偏心对扫描光线的影响。
- Material along the rotation axis falls vertically toward the equatorial plane much faster. 沿著转轴两侧分布的物质则快速笔直地落入赤道面。