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China's sub reaches record depth
A Chinese manned submersible successfully reached a depth of 5,057 meters during a test dive conducted Tuesday in the Pacific Ocean.
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Russia christens new nuclear sub
Defense Minister Sergei Shoigu attended the flag-raising ceremony after the Defense Ministry signed the acceptance act on December 29th.President Vladimir Putin is expected to ...
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一种苯基TSub>7Sub>POSS及其制备方法
本发明涉及有机硅树脂技术领域,具体为一种苯基T 7-POSS及其制备方法。背景技术 随着技术的飞速发展,有机硅树脂的耐高温性能已经远远不能适应航天领域的需求。如何进一步改善其耐热性,使其在...
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