查询词典 meteor stream

The main principle of Relativistic Two-Stream Amplifier is the two-stream interaction mechanism.This two-stream interaction mechanism generates the two-stream instability.

相对论双流放大器是一种结构简单、高增益、高效率的高功率微波器件，它的主要作用机制是两个同心环形电子束之间的双流互作用。

The simulations of two models are close to canopy albedo observation in this band. This indicates that the two-stream model can simulate the canopy albedo very well and the improvement of four-stream model is limited. The results also show that the albedo of the canopy modeled by the four-stream model is greatly improved than that of the two-stream model in the NIR band.

这表明在可见光波段，二流模式已经能够较好模拟冠层反照率，四流模式能够提高的精度范围有限；在近红外波段，因叶片散射率值较大，两个模式模拟结果差别较明显，四流模式模拟的冠层反照率相对二流模式的模拟结果更接近观测值。

According to the difference of Doppler spectra of meteor trail echo and clutter of ground and sea,a FIR high-pass filter is designed to filter out clutter and so the meteor trail echo becomes obvious.

该文根据地海杂波与流星干扰在多普勒谱上的差别，提出了用FIR型高通滤波器滤除杂波使流星干扰凸显出来；再根据流星干扰的分布特点分段计算背景噪声均值，求取流星干扰检测门限；最后用杂波信号来插值流星干扰位置上的数据，消除因去除干扰造成的杂波相位不连续。

I hope to see a meteor tonight while the final has been a meteor shower time can I still do not want to give up.

我希望看到今夜最后一颗流星虽然已经过了流星雨的时间可我还是不想放弃。

Okay, it was a meteorite, or small meteor, but it was still a meteor.

好吧，它是个陨石或者说小流星。但是它仍可被称为流星。

Of course, the meteor was part of the annual rain of dust from periodic Comet Swift-Tuttle known as the Perseid Meteor Shower.

斯威夫特－塔特尔彗星周期性回归后，遗留下的尘埃形成一年一度的流星雨，也就是著名的英仙座流星雨，当然，这颗流星就是其中的一部分。

Explanation: This bright and colorful meteor flashed through Tuesday's early morning skies, part of the annual Perseid Meteor Shower.

说明： 这颗来自英仙座流星雨的明亮多彩流星，在星期二掠过了清晨的长空。

The Perseid meteor shower has been observed for about 2000 years, with the first known information on this meteor shower coming from the Far East.

英仙座流星雨已经看到了大约2000年，第一已知信息关于这个流星雨来自远东。

Meteor in the majority of them fell to the ground about 60-70 km height Will be burning out, and by our Sky Survey camera tracking shot of a meteor that this is a very slow rate of growth fell to the ground about 37 kilometers away from the high, it at least a few films or meteorite impact to the scene.

大多数流星在它们降到到地面大约60-70公里的高度时就会被燃烧掉，而由我们的巡天摄像机跟踪拍摄的这一颗流星却以相当缓慢的速度降到了距离地面大约37公里的高度处，因此它至少有一片或几片陨星撞击到了场面。

For observers in northern hemisphere, we do not need to wait until wee hour for the show. The meteor shower is known as Geminid Meteor Shower because the meteors are radiating from the constellation of Gemini.

这时候所见的流星，多数原自于双子座，故被称为双子座流星群；而发射出流星的那一处则是辐射点，靠近&北河二&这颗亮星。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。