您要查找的是不是：
- gravitational darkening 引力昏暗
- Bats flitted about in the darkening sky. 蝙蝠在暮色苍茫的天空中飞来飞去。
- Go! And never darken my door again! 走吧! 下次不要再到我家来了！
- Buildings often darken as they get older. 建筑物渐渐变旧时其颜色常常变暗。
- Why Bother Looking for Gravitational Waves? 为什么要寻找引力波?
- A cosmetic applied to darken the eyelashes. 睫毛膏一种用于染黑睫毛的化妆品
- Exact solution of spherical gravitational. 球面引力波的精确解。
- And thus its gravitational field. 重力场也是这个样子。
- Nothing can dampen my spirit and darken my life. 没有什么能使我沮丧，使我生活暗淡。
- The ripples are gravitational waves. 这些波动就是重力场波。
- It is a spontaneous gravitational instability. 原因在于其自发的重力不稳定性。
- Don't let them darken your future. 不要再让他们为你的将来蒙上一层阴影。
- They are likely sources of gravitational waves. 它们很有可能就是引力波源。
- Jeff: Overhead, the sky was darkening. 杰夫：在他的头顶上，天空是一片的黑暗。
- Gravitational force from a shell;Hooke's 'law'. 利用积分推导球壳的引力；
- Back therefore to my darkening path again! 因此重新回到我那暗淡的小径中来吧！
- Can Ring Galaxies Form by Gravitational Collapse? 引力坍缩能形成环星系吗?
- Up over his head in the darkening skies. 在黑暗的天空中悬在它的头顶。
- Change the layer mode to "darken". 把图层模式改成"变暗"!
- To darken nature and be summer woods ? 即将长成阴阴夏木--
