首页
登录
职称英语
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_071[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_071[/audioFiles]
游客
2024-09-23
1
管理
问题
选项
答案
Space Junk
Space junk, also known as space waste, / is objects in orbit around the earth created by humans that no longer serve any useful purpose. / They consist of everything from entire spent satellites / to explosion fragments, deliberate insertion of small needles, and many other objects. / As orbits often overlap, the space junk is a potential collision risk for spacecraft. / (?) The vast majority of pieces of space junk are small particles. / Contact with these particles causes erosive damage. / The majority of the damage can be eased by adding a thin layer of metal / outside of the main spacecraft body. / However, certain portions of many satellites cannot be protected in this way, / the solar panels and windows for instance. / If a collision with larger pieces occurs, / many of the resulting fragments from the damaged spacecraft / will also be in the 1 kilogram mass range. / Consequently, these objects become an additional collision risk.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3771170.html
相关试题推荐
[audioFiles]2015m7x/audio_ezfm_095_20156[/audioFiles]Br
[audioFiles]2015m7x/audio_ezfm_001_20156[/audioFiles]Th
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_090[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_089[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_075[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_074[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_073[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_071[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_052[/audioFiles]
[audioFiles]2015m8x/audio_ezfj_ezflisteningd_20157_051[/audioFiles]
随机试题
[audioFiles]2016m8x/audio_ezfj_ezflisteningd_201607_143[/audioFiles]Bonds
PASSAGEFOUR[br]Whatisone’swaytomakehismoneythatBuffettandSorosand
【S1】[br]【S9】N)。空格处单词位于动词included之后,名词preparations之前,作preparations的定语,需要填入形容词。该
高血压性心脏病的病理变化是()。A.疣状心内膜炎 B.心瓣膜穿孔 C.左心
膀胱恶性肿瘤最常见的症状是A.排尿困难 B.尿频、尿急、尿痛 C.腹部肿块
患者张某,男,50岁,失眠症数年。关于其治疗与护理措施正确的是A.首选半衰期较长
小陷胸汤主治证候中有A.痰白而稀 B.干咳无痰 C.咳痰黄稠 D.痰中带血
不属于病毒感染快速诊断的方法是A.免疫电镜检查B.免疫光技术C.酶免疫技术D.反
安装泡沫液储罐时,要考虑为日后操作、更换和维修泡沫液储罐以及罐装泡沫液提供便利条
面神经下颌缘支受损表现为A.眼睑闭合不全B.口角下垂、流口水C.舌肌瘫痪及萎缩D
最新回复
(
0
)