untriennium
释义与例句
n.
-
1.
The systematic element name for the chemical element with atomic number 139 (symbol Ute).
不可数
词源
Systematic element name, from un- + tri- + enn- + -ium.
来源：wiktionary
The systematic element name for the chemical element with atomic number 139 (symbol Ute).
Systematic element name, from un- + tri- + enn- + -ium.
来源：wiktionary