Some 19,000 near-Earth asteroids(NEAs) are being monitored,but many lurk undetected by telescopes, so there is always potential for a bolt-from-the-blue.
骨髓活检并没有出错,因为即使是最敏感的检测也无法探测到疾病的存在。
Bone marrow biopsies were clear,with even the most sensitive testing unable to detect disease.
根据最近的报道,中国科学家开发出一种新型的雷达波无法探测到的物质。
According to recent reports, scientists in the country wouldhave developed a new type of material that could not be detected by radar waves.
因此斯托科维克博士认为计划中的引力波观测天文台(LISA)将无法探测到任何来自极早期宇宙的引力波。
So Dr Stojkovic reasons that a planned gravitational observatory(LISA)should not detect any gravitational waves emanating from the early universe.
Physicists of the ACME collaboration did not observe the EDM- which suggests that its valueis too small for their experimental apparatus to detect.
因此,担心一个功能完备的《全面禁止核试验条约》核查制度无法探测到当量较小的爆炸,是没有道理的。
Concerns that a fully functionalComprehensive Nuclear-Test-Ban Treaty verification regime would not detect fairly small explosion yields are therefore unjustified.
它的热辐射也很低,以至于热导导弹也将无法探测到它。
Its heat radiation should also beso low that heat-seeking missiles won't be able to detect it either.
That leaves open the possibility that explosives exist that cannot be detected by existing sampling apparatus, and which are not plastic explosives subject to the requirements of the Convention.
问题是我们的射电望远镜不够强大,无法探测到它们。
The problem is that our radio telescopes are not powerful enough to detect them.
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