好词典
n3
UK //US //
词源
N is the chemical symbol for nitrogen, derived from its Latin name 'Nitrogenium'. The number 3 may indicate an attempt to represent a triatomic form.
noun
❶ 化学元素氮的符号表示，氮是一种无色无味的气体，占地球大气的大部分。
“N3 is not a standard chemical notation.”
（N3不是标准的化学符号表示。）
“The formula N3 doesn't represent a known nitrogen compound.”
（化学式N3不代表已知的氮化合物。）