本义
发表于 2025-3-21 19:07:22
书目名称Spies in the Sky影响因子(影响力)<br> http://impactfactor.cn/if/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky影响因子(影响力)学科排名<br> http://impactfactor.cn/ifr/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky网络公开度<br> http://impactfactor.cn/at/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky网络公开度学科排名<br> http://impactfactor.cn/atr/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky被引频次<br> http://impactfactor.cn/tc/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky被引频次学科排名<br> http://impactfactor.cn/tcr/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky年度引用<br> http://impactfactor.cn/ii/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky年度引用学科排名<br> http://impactfactor.cn/iir/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky读者反馈<br> http://impactfactor.cn/5y/?ISSN=BK0874332<br><br> <br><br>书目名称Spies in the Sky读者反馈学科排名<br> http://impactfactor.cn/5yr/?ISSN=BK0874332<br><br> <br><br>
Optimum
发表于 2025-3-21 23:46:39
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HEPA-filter
发表于 2025-3-22 02:26:29
Sputnik,50 the USA produced 40% of gross world product, the global equivalent of gross domestic product. The only country to have ever come close to that dominance had been Britain with roughly 20% of gross world product after the Napoleonic wars in about 1820.
痛打
发表于 2025-3-22 04:51:49
Cold War nuclear stand-off,ngineer Werner Von Braun, the V2 was amazing in that it demonstrated how rocket power could propel a bomb hundreds of kilometers. Previously, the range of an artillery shell was limited to a few kilometers, with a few monster guns able to achieve a range of perhaps 30 km.
instructive
发表于 2025-3-22 10:39:58
SALT-II, to give the superpowers a chance to negotiate a more permanent limit on nuclear weapons. It was thought that negotiations to reduce weapon levels would be easier in the knowledge that the threat was not growing rapidly.
领导权
发表于 2025-3-22 15:23:21
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纬线
发表于 2025-3-22 20:07:38
,After the Cold War—regional tensions,Nine countries are now considered to be nuclear powers, with North Korea as the most recent member of the club and Iran threatening to bring the number up to 10. The others are the USA, Russia, France, Britain, China, Israel (allegedly), India, and Pakistan.
outer-ear
发表于 2025-3-22 23:39:58
What the future holds,During the Cold War, the main role of spy satellites was strategic—to monitor what the other superpower, and China, were doing as concerns long-range missiles and nuclear weapons. Once the Berlin Wall fell in 1989 and the Cold War slipped into history the priority for these satellites gradually changed—from strategic to tactical.
里程碑
发表于 2025-3-23 03:46:33
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saturated-fat
发表于 2025-3-23 05:39:37
Book 2008ary dimension. Today military satellites represent 25 percent of all satellites in orbit, and they are just as important now in preventing regional nuclear war as they were in preventing global Armageddon more than 30 years ago..