权威例句
helvinehelvinehelvineGenthelvite and the Helvine GroupBeryllium Minerals in Cornwall and Devon: Helvine, Genthelvite, and DanaliteMössbauer Spectra of Helvine GroupHelvine in the Gondite of Kajlidongri, Madhya Pradesh, IndiaHelvine from a Lithium Pegmatite Near Salisbury, Southern RhodesiaSymmetry relationships of sodalite (SOD) – type crystal structuresAbsorption of light by exchange coupled pairs of tetrahedrally coordinated divalent manganese in the helvite-genthelvite solid solut...