The target must be within range of its normal cone-shaped effect (150 feet).
该目标必须在正常的锥形效果射程范围内(150英尺)。
Radar can be blinded by bad weather, and not all volcanoes are within range of suitable equipment.
恶劣的天气会蒙蔽雷达,且并不是所有的火山都在合适的设备范围内。
Within a few years, Kurzweil estimates, the price range will be low enough for every school and library to own one.
库兹韦尔估计,在几年内,价格区间将低到足以让每所学校和图书馆都拥有一个。
So anything that goes from a higher energy level to 2 is going to be falling within the Balmer series, which is in the visible range of the spectrum.
任何更高能级到2能级2,都是属于Balmer系,它在可见光谱中。
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