This would be key to evaluating whether the craft had "low observability", i. e. stealth.

这将评估飞机是否有低可探测力的关键，即隐身。

youdao

Low: Move the most obvious junk email to the junk E-mail folder.

低：将最明显的垃圾邮件移动到“垃圾邮件”文件夹。

youdao

Low: Move the most obvious junk email to the junk E-mail folder.

低：将最明显的垃圾邮件移动到“垃圾邮件”文件夹。

youdao