massless

massless

1. One kind of particles produced by the p-p chain is neutrino, which is massless and neutral. We will discuss more on neutrinos in

p-p链产生的其中一种粒子是中微子它是零质量和不带电我们会在

2. HE Fa-xiang,WANG Zhong,LIU Hao-wu.Reduction of dynamic equilibrium equation for massless foundation model[J].Journal of Sichuan University,2000,32(4):7-10.

[7]何发祥,王忠,刘浩吾.采用无质量地基模型时动力平衡方程的缩减[J].四川大学学报,2000,32(4):7-10.

3. Comparing with the perturbation results in the generic nonrotating BTZ (NBTZ) black hole background, we found that the massless BTZ hole contains only normal modes in the perturbations.

与不旋转的BTZ（NBTZ）黑洞背景下微扰结果相比较，我们发现无质量黑洞仅有正则模。

4. Neutrinos and the hypothetical gravitons, also massless particles, move at the same speed as light.

中微子和假想的引力子也是无质量粒子，它们也以与光相同的速度运动。

5. An all - pervading,infinitely elastic,massless medium formerly postulated as the medium of propagation of electromagnetic waves.

以太，能媒一种在以前被假定为电磁波的传播媒质并具有绝对连续性、高度弹性的极其稀薄的媒体

6. A discovery that neutrinos, virtually massless particles, convert into other forms known as muon and tau before they leave the sun, solving a40- year-old mystery.

发现中微子（乎是无质量的粒子）离开太阳之前可转化介子，解开了一个40年的谜。

7. A discovery that neutrinos, virtually massless particles, convert into other forms known as muon and tau before they leave the sun, solving a 40-year-old mystery.

发现中微子（几乎是无质量的粒子）在离开太阳之前可转化介子，解开了一个40年的谜。

8. hence, a massless object can have no angular momentum.

因此一个无质量的物体是没有角动量的。

9. In effect, bodies are assumed rigid and treated as point massed;sprigs are massless and electrical leads resistanceless, suitable corrections are made to the system mass or resistance;

在效果上，物体被假设为是刚体并且质量都集中在一点上，弹簧的质量可以忽略；

10. There may be some extremly narrow resonances with massless than 2.6 Gev and width less than 0.1 MeV.

在质量小于2.6GeV的区域可能出现宽度不足0.1MeV的极窄共振。

11. Fundamental particles have an intrinsic mass known as their rest mass (those with zero rest mass are called massless).

基本粒子有个称为静止质量的内在质量（静止质量为零的粒子称为无质量粒子）。

12. Without mass the universe would be asea of particles zipping around at the speed of light (the natural condition ofany massless object).It would be hard for such particles to get together.

如果没有物理质量的存在,整个宇宙会是一个由各种微粒组成的海洋,这些微粒会以光的速度四处飘散(这是缺乏物理质量的物质所具的自然本性).将这些颗粒聚集起来是极其艰难的;

13. In fact, the spring of the absorber is not massless.

实际上，避振器的弹簧具有质量。

14. A new Rotor-to-Stator contact model is well developed, which consists of a rotor with two discs mounted on a massless shaft and a stator.

建立了一个新型多自由度的转子动静碰摩模型。

15. Abstract We have studied the scalar field as well as the fermonic field perturbations in the background of the massless BTZ (MBTZ) black holes.

我们分别研究了无质量BTZ（MBTZ）黑洞背景下的标量微扰和费米场微扰。

16. We mean a two-particle system with the particles held at a fixed distance from each other by a rigid massless rod of length d.

我们意指一个两粒子体系，粒子之间借助于一长度为d的刚性无质量棒而保持固定距离。

17. We found that the massless BTZ hole contains only normal modes in the perturbations.

拟正则模；

18. In this paper, the scalar field perturbations in the background of the massless BTZ black holes was discussed.We found that the massless BTZ hole contains only normal modes in the perturbations.

摘要讨论了在无质量BTZ黑洞背景中的标量场扰动，发现在此情况下，只存在正则模。

19. The whole idea gained little attention in the 19th century, since light was thought to be a massless wave, not influenced by gravity.

整个想法在第19世纪自从光被认为是无质量的、不受引力影响以来得到很少的关注。

20. Clean, massless, quick, useful, mobile, and interesting.

无污染、无重量、快速、有用、可移动而且有趣。

21. massless neutrino

无质量中微子

22. massless base

无质量地基

23. The massless Thirring model with an external electric field, and the Gross-Neveu model with internal SU(N) symmetry, as two examples for abelian and nonabelian bosonization, are discussed respectively in some detail.

有外电场的无质量Thirring模型,以及有内部SU(N)对称性的Gross-Neveu模型,分别作为阿贝尔和非阿贝尔玻色化的例子,作了具体的讨论.

24. The Standard Model tells us that protons and neutrons are composed of elementary particles called quarks that are bound together by massless particles called gluons.

标准模型告诉我们，质子与中子是由称为夸克的基本粒子构成的，而夸克则由胶子这种无质量粒子束缚在一起。

25. For example, it should be massless since the range of gravity is infinite.

比如，由于引力的作用范围是无限的，那引力子应该是无质量的。

26. Matter can embody the most information when it is converted to energetic, massless particles, such as neutrinos or photons, whose entropy density is proportional to the cube of their temperature.

物质在转换成活跃的无质量粒子（例如微中子或光子这类粒子）时，可包含最多的资讯；其熵的密度与其温度的立方成正比。

27. The massless Dirac quasiparticles in graphene have now come to the rescue.

现在，石墨薄膜中没有质量的狄拉克准粒子带来了希望。

28. SA (spectral acceleration) is approximately what is experienced by a building, as modeled by a particle on a massless vertical rod having the same natural frequency of vibration as the building.

而谱加速度大致上是一座建筑物感受到的加速度，科学家把一颗与目标建筑物具有相同自然频率的粒子放在一个近似无质量的垂直控制棒上进行模拟得出此数据。

29. A hypothetical massless, neutral elementary particle believed to mediate the strong interaction that binds quarks together.

胶子假设的无质量的中性基本粒子之一，被认为能传递一种把夸克结合在一起的强大的相互作用力量

30. Were it not for quantum effects, a violin string could be cut in half, cut in half again and so on all the way down, finally becoming a massless pointlike particle.

若不考虑量子效应，一条小提琴弦可以对切、对切，再对切，如此一直下去，终究会变成一些无质量的点状粒子。

31. The formula for angular momentum multiplies together velocity, mass and distance from the axis; hence, a massless object can have no angular momentum.

角动量的公式是速度、质量以及物体到转轴距离三者的乘积；因此一个无质量的物体是没有角动量的。

32. This special property reflects that the massless BTZ black hole is a different phase from that of the generic non rotating BTZ hole.

这反映了无质量BTZ黑洞可能是一种与原始无旋转BTZ黑洞不同的相。

33. In the quantum field theory which arises from classical electromagnetism, called quantum electrodynamics, there is a massless particle associated with electromagnetic radiation, called the photon.

这系统被认为具有两颗中子星，以极其紧密而快速的模式互相环绕对方。

34. Reduction of Dynamic Equations of Dam-Foundation Interaction Based on Massless Foundation

采用无质量地基模型时动力平衡方程的缩减

35. In quantum chromodynamics (QCD), hadronic matter is composed of quarks, and interactions between them are mediated by eight massless gluons.

量子色动力学（QCD）是描述物质结构最基本的单元、即夸克与胶子间强作用的规范理论。

36. the damping layer is simulated by a massless viscoelastic spring.

阻尼覆盖层用无质量的粘弹性弹簧模拟。