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。

youdao

A real complicated engineering surface was used to verify its properties in extraction of mean line and roughness and satisfactory results were obtained.

对一个实际工件进行测量提取表面中线和粗糙度，结果令人满意。

youdao

Seize even a ball-point, though its line is mean and thin, and though teachers will tell you that nothing ruins writing faster.

你手里拿着的可能是一支圆珠笔，尽管写出的线条单薄纤细，而且老师会告诉你，没有什么比写字飞快更糟糕。

youdao

All right, good. So the pink line is actually going to get steeper, but I know what you mean.

说得很好,但粉色的线会变陡峭,我理解你说的意思了

耶鲁公开课 - 博弈论课程节选

I mean, I think the line is very blurred between the classes here.

这里的社会等级意识真的很模糊。

美国贫富差距？ - SpeakingMax英语口语达人

So I've used this jargon before; command line arguments, but what does that really mean?

我之前也用过这个术语，命令行参数，但是这实际上是什么意思？

哈佛公开课 - 计算机科学课程节选

In mid Wales, that may mean a line of 50 metre (164ft) pylons carrying 400, 000 volt electricity cables from Montgomeryshire to near Shrewsbury.

BBC: Why many in rural Wales worry over power and pylons

Since 1996, energy balance measurements have been carried out in the vicinity of the mean equilibrium line 5150 m a.s.l. on Zongo Glacier 2.1 km .

UNESCO: Dublin Core

' So Orson says, 'What does it mean crossing the line?

WSJ: Bari Weiss: David Mamet's Coming Out Party