Likewise,諸如, it would appear a reasonable hypothesis that the Earth has also been subjected to meteoroid bombardment in the past, and that very large bodies struck the Earth early in its geological history.

它顯示出了一個可能的假設(shè)，地球在過去受到流星炸彈欧美一级a大片免费看视频妇产科，而那非常大的實體打擊地球早在它的地質(zhì)歷史一级黄色网站直接看。

The LunarScan software was originally developed in 1999 to process video imagery of meteoroid impacts on the moon collected by Dave Dunham during the Leonid meteor storm of that year.

該LunarScan軟件最初是在1999年處理視頻圖像的流星體的影響在月球上收集的戴夫鄧納姆在獅子座流星暴雨的一年。

From momentum equation and energy equation, the ablation profile of meteoroid with different radius in different velocity is calculated, and the variation of the ablating cut-off height is analyzed.

本文從流星顆粒的動量方程和能量方程出發(fā)欧美区网站，計算不同半徑下的流星微粒在不同的注入速度下的消融剖面，并分析了流星消融截止高度的變化趨勢婬乱A片欧美大片。

Using Sentinel,"we can discover new meteoroid streams that could pose a threat to spacecraft and satellites—or just put on a pretty show from time to time."

使用"哨兵"我們能發(fā)現(xiàn)可能對太空船和人造衛(wèi)星造成威脅的新流星雨av黄色在线大全，或者只是時不時上演一場漂亮的流星秀。

In the solar system are a large number of small meteoroids, and some groups of the meteoroid is, the meteor is the product of the collapse of the comet.

太陽系中還有數(shù)量眾多的大小流星體噢美性爱操你啦，有些流星體是成群的免费A级毛片无码免费视频中国，這些流星群是彗星瓦解的產(chǎn)物。

If a meteoroid enters the Earth's atmosphere, it is heated by friction and appears as a glowing streak of light called a meteor.

如果一個流星體進入地球的大氣層，它因為摩擦而受熱人人操人人摸人人干五月，并且表現(xiàn)為熾熱飛跑的光国产最新进精品视频网站，被稱為流星(meteor或者 shooting star)。

Cooke is especially interested in centimeter-class meteoroids because he and his colleagues at the NASA Meteoroid Environment Office frequently see them hitting the Moon.

庫克對厘米級的流星體尤其感興趣国产v亚洲v欧美v专区，因為他和美國宇航局流星體環(huán)境辦公室的同事們經(jīng)成酆献酆希看到小流行撞上月球。

Under sponsorship by the NASA Meteoroid Environment Office the software was ported from Macintosh to PC compatible systems as well as a frame-to-frame registration algorithm implemented and tested for more robust flash detection.

贊助下由美國航天局流星體環(huán)境廳的軟件是從蘋果機移植到PC兼容的系統(tǒng)精彩美女一区二区v，以及作為一個幀到幀的注冊算法執(zhí)行和測試97超爽免费公开视频在线，更強大的閃存檢測。

Spacecraft ; Meteoroid ; Space debris ; High velocity impact ; Risk analysis

航天器日批视频在线播放；微流星精品国产三级在线天天更新；空間碎片；高速撞擊超碰在线婷婷；風(fēng)險度分析

There are many factors which influence the selection of spacestation orbit,such as mission requirements,radiation environment,meteoroid/debris environment,configuration of space station,vehiclecapability,launch window and logistics demands of space station.

有許多因素影響空間站軌道高度的選擇国模嫩模大尺度无码，包括：任務(wù)要求，輻射環(huán)境亚洲一区二区视频免费观看，微流星和空間垃圾久久按摩，空間站構(gòu)型，運載器能力免费一终婬片A片AAA毛片，發(fā)射窗口以及空間站的補給要求等人人看免费黄视频。