| 单词 | thorite |
| 释义 | thorite (once / 1181932 pages) n WORD FAMILY thorite: thorites USAGE EXAMPLESDeterminations of the atomic weight of lead from thorite, a thorium mineral nearly free from uranium, gave 208.4. Venable, Francis Preston, A Brief Account of Radio-activity(2010) thing there is sometimes, along with very large amounts of thorium, an almost entire absence of lead in thorianites and thorites. Joly, John, The Birth-Time of the World and Oth...(2010) n a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite Hyper mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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