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- injection orbit radius 注入轨道半径
- Cordelia and Ophelia orbit inside the synchronous orbit radius. 天卫六与天卫七属于同步轨道半径之内。
- Metis and Adrastea orbit inside the synchronous orbit radius and inside the Roche limit. 木卫十六与木卫十五的公转轨道处在同步公转轨道半径之内，并在Roche极限之内。
- Owing to the extremely small orbit radius, the laser-field synchrotron radiation thus generated is an attosecond or zeptosecond X-ray pulse. 研究发现此过程可以获得阿秒和泽秒X射线脉冲；
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- SYNCOM I failed on injection into orbit. 同步传输卫星1号在进入轨道时失败了.
- The space shuttle will orbit a weather satellite. 太空梭将把一个气象卫星送入运行轨道。
- The launch vehicle lifts the satellite into orbit. 太空火箭将人造卫星送入运行轨道。
- Moving or directed along a radius. 沿着或向着半径移动的
- Something of circular form; a circle or an orbit. 圆形物体圆形物体; 圆圈或环形轨道
- The orbital radii of the moons are strangely separated by less than the radii of the moons themselves: about 50 kilometers. 令人奇怪的是，卫星轨道分开的距离比卫星的半径还要小：约50千米。
- Did you have gas or an injection? 你是用的麻醉气还是打的麻醉针?
- I had a bad reaction after my typhoid injection. 我注射了伤寒针剂后产生了不良反应。
- The spacecraft is in orbit (ie moving in orbit) round the moon. 该航天器在绕月球轨道上飞行。
- The morphine was administered by injection. 那吗啡是注射进去的。
- The police searched all the woods within a six-mile radius. 警察搜索了在周围六英里以内的树林各处。
- There are three lakes within a radius of five miles. 周围五英里之内有三个湖泊。
- Marketing does not come within the orbit of his department. 市场推销业务不归他这一部门管。
- The given radius being 4 ft., find the circumference. 已知半径为四英尺,求周长。
