Gravity waves have a frequency of about once every 30 seconds.
重力波的频率为每30秒一次。
The pattern is of atmospheric gravity waves playing on the surface of the ocean.
这张图案是在大气重力波对海洋表面所产生的影响。
Sometimes likened to UFOs, lenticular clouds are usually created by gravity waves.
透镜状云彩很像UFO，它通常由引力波造成。
Atmospheric gravity waves form when buoyancy pushes air up, and gravity pulls it back down.
当浮力把空气向上推，而重力又把它向下拉的时候，就会形成大气的重力波。
That means if atmospheric gravity waves are present, their pattern becomes visible in the water.
这说明着如果当时存在重力波，从水中就可以见到它的模式。
These are infragravity waves, so called because they are sub-harmonics of the original gravity waves.
这就是亚重力波，之所以这样命名是因为它们是原始重力波的分谐波。
The most easily observed example of such gravity waves is that of waves in the lee of mountains.
最容易观测到的这种重力波是产生在山背冈的重力波。
It is shown that the gravity waves can initiate the interchange instability under some conditions.
在适当的条件下，重力波能触发交换不稳定性。
Generation Mechanisms of Convectively Forced Internal Gravity Waves and Their Propagation to the Stratosphere.
对流强迫重力内波的生成机制和向平流层的传播。
In particular, a new study suggests that neutron stars can spin only so fast before they begin to emit gravity waves.
新研究特别指出，它的转速是中子星不辐射引力波的上限。
And under the condition of propagating against weak wind, most of medium-scale gravity waves can reach observation height.
而在弱逆风作用下，大部分中尺度范围重力波都能够传播到观测高度。
Scientists speculate that this phenomenon is caused by atmospheric gravity waves trapped inside a temperature inversion layer.
科学家们猜测这种现象是由大气重力波在逆温层中传导变形产生。
A set of the interaction equations of inertial gravity waves in a dissipative atmosphere on the basis of the weak nonlinear theory is derived.
根据弱相互作用理论，本文建立了损耗大气中极性重力波的非线性相互作用方程。
Saturation mechanism of gravity waves in mesosphere is discussed by simulating the nonlinear upward propagation of gravity wave in mesosphere.
通过对向上传播的重力波波包在中层大气中的非线性传播过程进行数值模拟，讨论中层大气中重力波的饱和机制。
In this paper, the variation of spectral structure of acoustic gravity waves (AGW's) propagating through a region of vertical wind shear is investigated.
本文研究声重波在垂直切变风场中传播时谱结构的改变。
Normal swells, known technically as gravity waves, are created by wind pushing the surface of the sea up and gravity then pulling it down, causing it to bounce.
一般的波浪，技术上被成为重力波，是由于风推动着海洋表面上升而后又在重力的作用下被拉向下方，这便会导致海水的回弹。
When the strength of gravity waves are strong enough, the time difference that the snow peak lags behind the wave crest of gravity waves becomes quite long.
当重力波的强度较强时，降雪峰值滞后于波峰的时间差也较长。
The short wave disturbance did not match the undulation of the wind field, and the characteristics of its phase propagation were similar to those of gravity waves.
该短波扰动与风场的波动不相匹配，其位相传播特征与重力波相似。
The 3-d shapes of gravity waves in rectangular elastic fluid-shell coupled system are presented to realize the untouched measurement of the fluid large deformation.
为了测量矩形弹性壳液耦合系统中的重力波的三维外形，实现大变形液体的非接触测量，使用激振器时矩形弹性壳液耦合系统在水平方向进行激振，得到大幅低频重力波。
In numerical computations, the influences of the free surface gravity waves, the fluid compressibility or non-compressibility on the hydro-dynamic pressure and on th...
在数值计算中，分析了自由表面重力波及流体可压缩性及考虑流体的可压缩性与不可压缩性对相互作用体系动水压力和地震响应的影响。
Relationships between ionospheric responses to atmospheric gravity waves in different plasma quantities are investigated with the help of European Incoherent Scatter radar data.
本文利用欧洲非相干散射雷达数据，分析研究了电离层不同等离子体参量对大气重力波的响应之间的关系。
In future, it might even be possible to observe this process with the planned LISA satellite, an instrument capable of measuring the gravity waves that the two merging black holes emit.
未来，科学家们还有可能用丽莎卫星进行观测，丽莎卫星可以测量到两个正在合并的黑洞发射出的引力波。
In this paper, we discuss the characteristics for magneto-acoustic-gravity waves propagating along the direction of gravitational field in the earth's magnetosphere near the equator.
本文讨论了赤道附近地球磁层中磁声重波沿重力场方向的传播特征。
These waves between Indonesia (top) and the coast of Australia (bottom) aren't caused by wind. They're a direct result of gravity.
在印度尼西亚(顶部)和澳大利亚海岸(底部)之间的这些波不是由风所引起。它们是重力作用的直接结果。
A keel also provides weight low under the water to lower the boat's center of gravity below the waterline, which is needed so that the boat bobs back upright if knocked over by wind or waves.
龙骨同时也增加了船只的底部重量，从而将船只重心降到吃水线之下，而这对于船只在被风浪打翻时能够得以及时回正是十分必要的。
Last go-round, M82's gravity likely raised density waves rippling around M81, resulting in the richness of M81's spiral arms.
最近一个周期中，M82的重力增强了M81周围密度波的脉动，导致M81的旋臂更浓密。
Gravity, however, causes density waves to move out through the galaxy which in turn triggers the formation of hot, bright young stars, producing the ring that we see in this picture.
引力会使密度波穿透星系，继而形成炽热、耀眼的年轻恒星，产生我们在图片中看到的光环。
Compared with the other three forces in the universe (electromagnetism, the weak nuclear force and the strong nuclear force), gravity is relatively feeble, making gravitational waves hard to detect.
和宇宙中的其他三种力(电磁力、弱核力、强核力)相比，重力就微弱得多了，所以引力波很难被观测。
For instance the geomagnetic Field, the heat flow, the propagation of seismic waves, the force of gravity, etc.
例如，应用地球物理勘探，可以了解诸如地磁场、热流、地震波的传播和重力等地球物理性质。
Finally, the values of roll stability, in accordance with the condition of the balance between gravity and buoyancy of ship in waves and also with that the sum of trim moments is zero are obtained.
然后，根据波浪中重力与浮力平衡、纵倾力矩之和为零这两个条件来求取横摇稳性力臂值。
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