基本解釋n.[化]釷(符號Th;原子序90)同根派生 thorium相關詞英漢例句Marie found another called thorium. 瑪麗發(fā)現(xiàn)了另一種物質(zhì),叫釷。A radioactive isotope of thorium with mass number228. 射釷釷的放射性同位,質(zhì)量數(shù)爲This is clearly confirmed by the detection of thorium. 這顯然証實了檢測釷.They recognized that in a thorium province Pb208 would present complications. 他們承認,含釷區(qū)內(nèi)的Pb208會産生乾擾。Followed by the slow decomposition of uranium to another element thorium. 鈾元素隨後緩慢分解爲另一種元素釷。thorium更多例句