采用低可见性技术或隐身技术制造的进攻兵器是2 1世纪防空系统重点对抗的主要目标威胁。
The attack weapons made by use of the stealth technology or low visibility technology are main target threat which would be confronted by the aerial defense systems at present or in the 21st century.
当今的安全状况是威胁越来越多，但可见性却越来越低；数据越来越多，但重要性却越来越低；影响越来越大，但反响却越来越少。
The security posture for today is that there are more threats but less visibility, more data but less prioritization, and more impact but less response.
针对高轨环境下导航星可见性差，信号功率低的情况，提出了一种提高导航信号捕获能力的方法，并在理论上进行了分析论证。
For the poor visibility of the navigational satellites and the low power of the signal, the paper proposes a new way to improve the GEO's acquisitive performance and validates the method in theory.
他说，当地企业盈利可见性甚低，可见度仅到十月底，如果找不到销售点，其中的一部分企业将因库存积压而面临倒闭的风险。
He said local firms' visibility stretched only as far as the end of October and that if they could not find outlets for their production, some of them could collapse under the weight of stocks.
他说，当地企业盈利可见性甚低，可见度仅到十月底，如果找不到销售点，其中的一部分企业将因库存积压而面临倒闭的风险。
He said local firms' visibility stretched only as far as the end of October and that if they could not find outlets for their production, some of them could collapse under the weight of stocks.
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