搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
壹线生活 on MSN
3 天
月球没有大气,探月器如何点火,又如何升空?
火箭一飞冲天,带着探月器奔向月球,而登月舱完成月球任务后,也会再次点火升空返回地球。等等,月球和地球可是大不一样,月球接近真空,大气压强只有10的-10次方帕斯卡,这环境下探月器咋点火?又咋上天呢?
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
Advance to World Series
Reaches tentative union deal
Trump's Pennsylvania rally
Boat rider arrested in FL
Baldwin returns to 'SNL'
Postpones US tour
MS after game shooting
Hurricane Oscar forms
US probing documents leak
Ferry dock collapses in GA
NYC Halloween dog parade
Urges support for Ukraine
Probes near miss in Austin
Philip Zimbardo dies at 91
Opioid suits settlement deal
ISR strikes northern Gaza
Bladder cancer drug pulled
Challenges military listing
To furlough 700 workers
Rock & Roll HOF '24 class
CVS workers strike
NK sending troops to RU?
Oakland fire burns homes
Launches OneWeb mission
Antitrust ruling delayed
Georgia beats Texas
Orionids meteor shower
US deficit reaches $1.8T
Republicans appeal ruling
School shooting report
Ex-MN congressman dies
G7 ministers back Ukraine
Emergency abortion ruling
Frozen waffles recalled
NC breaks turnout record
反馈