流星体

If the meteoroids are bunched together, the number of meteors seen varies from year to year

如果流星体聚集在一起，则每年看到的流星数都不一样。

If the meteoroids are bunched toge the r, the number of meteors seen varies from year to year .

如果流星体聚集在一起，则每年看到的流星数都不一样。

Meteor including single meteor, and the meteor shower of meteors fire are larger than mung bean of the meteoroid enters the atmosphere will be a visible brightness of the meteor.

流星包括单个流星、火流星和流星雨三种，比绿豆大一点的流星体进入大气层就能形成肉眼可见亮度的流星。

Since when did you become an expert on meteoroids?

你什么时候变成流星体专家了啊？

Meteoroids are small chunks of stone or stone and iron, some of which are fragments of asteroids or comets.

流星体是小的石块或者石头和铁、其中有一些是小行星或者彗星的碎片。

Meteoroids range in size from tiny dust particles to objects tens of metres across.

流星体的尺寸范围从微小的尘粒到横切为数十公尺的物体。

The Moon has no atmosphere to protect the surface, so meteoroids crash right into the ground.

由于月球没有大气保护，流星体将直接撞在月球表面。

All spacecrafts in low orbit are subject to hypervelocity impacts of meteoroids and space debris,which can in turn lead to its significant damage and catastrophic failure.

低地球轨道上的航天器易受到微流星体及空间碎片的超高速撞击，导致其严重的损伤甚至灾难性的失效。

In the case of both the Moon and Mars, it is generally concluded from the appearance of their heavily cratered surfaces that they have been subjected to bombardment by large meteoroids during their geological history.

月球和火星两方面，它通常总结出在它们的地理历史中受大流星体所攻击的深而多坑的表面。

All spacecraft in low orbit are subject to hypervelocity impact by meteoroids and space debris, which can in turn lead to significant damage and catastrophic failure.

低地球轨道上的航天器易受到微流星体和空间碎片的超高速撞击，导致其严重损伤甚至灾难性的失效。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。