Several different applicator arrays are suitable for use with the system, and comprise generally cylindrical annuli which emit radiation toward a central axis.
几个不同的辐射器阵列适于和所述系统一起使用，并通常包括朝中央轴线辐射的柱形环体。
In the mid-1970s, Hawking showed that black holes are in fact not entirely "black" but instead slowly emit radiation, which causes them to evaporate and eventually disappear.
在19世纪七十年代中期，霍金论证道，黑洞事实上并不是“全黑”的，而是在缓慢释放射线，这导致它们不断蒸发直至消亡殆尽。
Experts know that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication.
专家知道便携式电子设备发出辐射能影响飞机导航和通讯所用的波长。
The discrepancy is due to greenhouse gases in the atmosphere, which absorb and re-emit infra-red radiation, and thus keep the lower atmosphere, and the surface, warm (see the diagram below).
究其原因，原来是大气中的温室气体造成了这种温度上的差异。温室气体吸收，并再度释放了远红外辐射，使得底层大气与地表保持温暖(参见以下附图)。
Dark matter is the term for matter which cannot be detected directly, because it does not emit or reflect light or radiation - or, at least, not enough to be detected by our present sensors.
暗物质是一种人类不能直接观察到的物质，因为它既不反射也不释放光线或放射线——至少，我们现有的探测器无法观测到它。
Experts kn ow that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication.
专家知道该便携式设备会发出辐射从而影响飞机用来导航和通信所使用的波段。
Experts know that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication.
专家认为，便携式的电子设备会发射出一些辐射，这些辐射能影响飞机用来导航以及跟地面联系的一定波长的电磁波。
Quantum dots are semiconductor nanostructures, 25 billionths of a meter in diameter, which can confine electrons in three dimensions and emit light when exposed to ultraviolet radiation.
量子点是一种直径为25纳米的半导体物体，当有紫外线的照射时，它能把电子限制在三维空间并产生光源。
Quantum dots are semiconductor nanostructures, 25 billionths of a meter in diameter, which can confine electrons in three dimensions and emit light when exposed to ultraviolet radiation.
量子点是一种直径为25纳米的半导体物体，当有紫外线的照射时，它能把电子限制在三维空间并产生光源。
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