So if you get an ore of the right type of radioactive element, and you wait millions and millions (or even billions) of years, you make a giant underground store of helium !
所以要是你获得了放射性元素的正确类型矿石后，等上数十亿年（甚至数万亿年）就能获得地下隐藏着的大量氦！
Lead isotope research shows that lead in ores of Mujiazhuang copper deposit and near ore country rocks is characterized by being rich in radioactive lead.
铅同位素结果研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅具有富含放射性成因铅的特点。
By surveying the data, we concluded that the radioactive element contents are higher in the alteration zone, middle in the mixed granite and lower in the ore veins.
从实测结果可知，放射性元素在不同岩性中的含量以蚀变带最高，混合花岗岩次之，石英(矿)脉中最低。
The radioactive pollution of iron ore imported via Beilun port was studied by measuring the imported iron ore deposited at Beilun port.
通过对堆放在北仑港口的进口铁矿石进行放射性水平测量，研究了北仑港口进口铁矿石的放射性污染状况。
The radioactive pollution of iron ore imported via Beilun port was studied by measuring the imported iron ore deposited at Beilun port.
通过对堆放在北仑港口的进口铁矿石进行放射性水平测量，研究了北仑港口进口铁矿石的放射性污染状况。
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