简单来讲，隐形技术可以使飞机在雷达或其他检测方法下变得部分不可见。

Simply speaking, stealth technology allows an aircraft to be partially invisible on radar or any other detection methods.

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工具是在检测预防的战略目标中占非常大的一部分。

Tools are a very large part of the strategic goal of prevention over detection.

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这项检测已经在药品连锁店和网上销售多年，但是使用者寥寥，部分原因可能是因为其准确性还是个未知数。

The tests have been available in drugstore chains and online for a few years, but their use has been limited, partly because their accuracy was unclear.

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