单词mean line
un.: 等分线；中线；中弧线；平分线
网络: 中间线；翼型中线；小写线
平分线
中弧线
中线
等分线
Mean line: Imaginary line which runs along the top of the lower-case letters in a line of text.
中间线：在一行英文字里，沿着小写字母上端的一条假想线条。
The line that marks the tops of lowercase letters without ascenders . Alternative term: mean line.
中义小写字的最高点的假想线。参考字：中线。
When the sterile plant of male-sterile mean line of cabbage 88 - 3 flowering, there is no pollen grain in the anther.
大白菜雄性不育两用系88-3的不育株，其开花时花药内无花粉粒；
Assessing the repeatability of dynamic measurement based on mean line
基于均值平移的动态测量重复性的评定方法研究