您要查找的是不是：
- Some newer theories such as string theory do postulate extra dimensions, but as our three-dimensional universe expands, it does not need these extra dimensions to spread into. 有些新潮的理论如弦论，的确假设了额外的维度，但是当我们的三维宇宙膨胀时，并不需要这些额外的维度供其扩张。
- That knowledge could in turn open the door to exotica such as extra dimensions and low-energy superstring phenomena. 这些知识可能敲开一扇门，通往一个崭新未知世界，例如超高维空间和低能超弦现象。
- Non-commutativity is also studied in the quantum gravitational theory, cosmology and extra dimensions. 此外非对易还用于量子引力，宇宙学，额外维度等理论。
- In string theory we have several extra dimensions, which results in many more adjustable parameters. 在弦论里，我们有数个额外维度，结果产生更多的可调参数。
- It is assumed that the extra dimensions of M-theory must in some way be squashed down to a size that we can't see. 人们认为M-理论的额外维度的必须以某种方式塞进到我们所不能看见的尺度里。
- The extra dimensions introduce a correction term into the equations, which ensures that the curvature of an empty brane is not zero. 额外维度在方程式中引进了一个修正项，该修正项确保了一个即便是空的膜其时空曲率亦不为零。
- If the extra dimensions of space were to change in size, the “constants” in our three-dimensional world would change with them. 假如额外空间维度的大小改变，我们三维空间世界里的常数也许会随著变动。
- This distinction offers a second reason not to see the extra dimensions: our instruments may be built of particles that are trapped on a brane. 这项区别提供了我们看不见额外维度的第二个理由：我们的仪器是使用被困在膜里的粒子所建造的；
- The possibility of extra dimensions has also come to play a vital role in unifying general relativity and quantum mechanics. 额外维度的可能性也同样在统合广义相对论与量子力学时，扮演非常重要的角色。
- String theorists, who seek to unify the laws of gravity with those of quantum mechanics, have long predicted the existence of extra dimensions. 弦论企图整合重力和量子力学，也一直预测额外维度的存在。
- One extra dimension can be wrapped up only in a circle. 一个额外维度只能缠绕成一个圈圈。
- The most powerful atom-smasher ever built could make some bizarre discoveries, such as invisible matter or extra dimensions in space, after it is switched on in August. 但是，也有评论家担心这个大型强子对撞机会超出物理学家的大胆预测：它会不会产生能够吞噬地球的黑洞呢？
- He is a good newsman, and he has that extra dimension. 他是一个优秀新闻工作者，并具备诸方面条件.
- The mystery has focused attention on an intriguing and very unconventional hypothesis: a fourth kind of neutrino may be bouncing in and out of extra dimensions. 现在，他们认为其中的奥秘就在这个有趣又奇特的假设中：有第四种风味的微中子，在四维和额外维度之间来去穿梭。
- His current physics research focuses on particle cosmology, working on ways that cosmic inflation might be made compatible with superstring-inspired large extra dimensions. 他目前的物理研究集中于粒子宇宙学，探讨究竟有什麽办法能让宇宙暴胀与灵感得自超弦的大的额外空间维度相容。
- An extra dimension? How would you know? snapped the nagging voice in my head. 全新的视角?你怎么知道的?挑剔的声音又在我头脑里作怪了.
- If so, the LHC could offer a peek into those extra dimensions [see “The Universe's Unseen Dimensions,” by Nima Arkani-Hamed, Savas Dimopoulos and Georgi Dvali;Scientific American, August 2000]. 在这种情况之下，LHC便可能提供一扇窗去探索空间的额外维度。
- Only a few hypothetical particles, such as the graviton (which transmits the force of gravity), must be closed strings and are thus able to move completely freely through the extra dimensions. 只有少数像重力子（传输重力的媒介粒子）这样的假设性粒子属于闭弦，可以自由自在地在额外维度间运动。
- A new study demonstrates that the shapes of extra dimensions can be "seen" by deciphering their influence on cosmic energy released by the violent birth of the universe 13 billion years ago. 通过“及时追溯”宇宙大爆炸后的瞬间状况，美国威斯康星-麦迪逊大学物理学家设计出一种方法可以帮助解开宇宙混沌中所隐藏的额外维度形态。
- These gravitons are insignificant over short distances but dominate on distances comparable to their wavelength, and they undermine the brane's ability to isolate itself from the extra dimensions. 这些重力子在短距离是微不足道的，但却在和它们波长差不多的尺度上有著重要的影响，瓦解了膜将自己孤立于额外维度之外的能力。
