RTGs power many space missions — including NASA's Cassini and New Horizons probes — as the slow decay of small pellets of radioactive material produces heat that can be turned into electricity.
RTG已为许多太空任务提供动力，包括美国宇航局的“卡西尼号”和“新视野”探测器。在放射性物质的小球衰退过程中可以产生出热量，从而将其转化为电能。
For example, some container assemblies of the invention include a body and a lid both including radiopaque material, and together defining a receiving space for radioactive material.
例如，本发明某些容器组件包括本体和盖，均包括射线透不过的材料并一起限定了放射性材料的容纳空间。
Carbon has two non-radioactive isotopes, and in material from the solar system, including most meteoritic minerals, these are mixed in a well-known ratio.
碳有两个非放射性的同位素，在太阳系的物质中，包括在大多数的陨石矿石中，它们的混合比例是众所周知的。
Radioactive products or waste "means any material, including nuclear fuel, made radioactive by neutron irradiation incidental to the utilization of nuclear fuel in a nuclear ship."
“放射性产物或废料”，是指伴随核动力船舶使用核燃料产生的，通过中子辐照而具有放射性的任何物质，包括核燃料。
Radioactive products or waste "means any material, including nuclear fuel, made radioactive by neutron irradiation incidental to the utilization of nuclear fuel in a nuclear ship."
“放射性产物或废料”，是指伴随核动力船舶使用核燃料产生的，通过中子辐照而具有放射性的任何物质，包括核燃料。
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