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- Constructing the Galactic Rotation Curve 构造银河旋转曲线
- Galactic rotation curves, which illustrate the velocity of rotation versus the distance from the galactic center, cannot be explained by only the visible matter. 银河旋转曲线,就是用图例说明相对星系中心距离的旋转速度,仅靠可见物质解释不了这个速度。
- galactic rotation curve 银河系自转曲线
- To make a rotation curve one calculates the rotational velocity of stars along the length of a galaxy by measuring their Doppler shifts, and then plots this quantity versus their respective distance away from the galactic center. 沿着银河的长度通过测量它们的多普勒变换计算星系的旋转速度的旋转曲线,然后绘出它们分别远离银河中心的距离。
- The Rotation Curve of Our Galaxy 银河系自转曲线
- The next point to the right is the mass in galaxies, which moves to the position of the higher dot if we include the dark matter inferred from rotation curves. 右边下个点是银河的质量如果我们包括从旋转曲线推论出暗物质移到更高点的位置上。
- DETERMINATION OF THE GALACTIC ROTATION PARAMETERS FROM CEPHEIDS AND 21CM EMISSION OF NEUTRAL HYDROGEN 用造父变星和21厘米氢线发射探求银河系自转参数
- The falling star described a long curve in the sky. 流星在空中画出了一道长长的弧线。
- The seasons follow each other in rotation. 四季循环交替。
- Rotated curving face Equations, which originated from two kinds of hyperbolas rotating around asymptote was discussed. 摘要讨论不同类型的双曲线绕其渐近线旋转生成的旋转曲面方程,其中包括双曲线为等轴双曲线的情形;
- A line segment that joins two points on a curve. 弦将两点用曲线连接起来的曲线段
- galactic rotation 银河系自转
- His spine developed a slight curve. 他的脊柱有点弯曲。
- The coast sweeps (away) northwards in a wide curve. 海岸呈一大弧形向北伸展。
- A rotation of personnel; crop rotation. 员工的轮流替换; 农作物的轮作
- differential galactic rotation 银河系较差自转
- A bend or curve, especially in a shoreline. 弯曲,弓形弯曲或弓形,尤指海岸线
- The rotation of crops keeps the soil healthy and fertile. 谷物轮种使土壤保持了肥力和高质。
- A wicked curve ball; a wicked imitation. 漂亮的曲球; 惟妙惟肖的模仿
- The sun appears to rise and set because of the earth's rotation. 因为地球在自转,看上去就有了日出和日落。