英[\'dʌblɪts]
美[\'dʌblɪts]
It was surprising when the alkali spectra showed unmistakable doublets.
当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.
辞典例句
The envelope is called a double of doublets.
这种峰叫做双合双重线.
辞典例句