其他OpenType 特性还包括，用于制表的等宽数字(tabular figures)和不等宽的比例数字(proportional figures)，上下标数字、分数以及序号等。

Other OpenType features include tabular and proportional figures, superior and inferior numerals, diagonal fractions, and ordinals.

youdao

气动标记机是利用空气压缩机和一个气阀控制打印头上下振动，在工件上打下标记。

Pneumatic marking printer utilizes the air compressor and a pneumatic valve marking on the work piece through controlling the marking head vibration up and down.

youdao

N And, in your text, it's E sub N.

在你的课本上，是E下标。

麻省理工公开课 - 固态化学导论课程节选

To get any location in memory, to get to any value of the list, I simply have to say which element do I want to get, I know that these things are stored in a particular size multiply that index by 4, add it to start, and then it's in a constant amount of time I can go to that location and get out the cell.

取得列表中的任何一个值,简单说来，想要取得列表中的任何元素,我知道这些元素存在特定的大小中,把下标乘以4，加到start上,然后定位到内存单元，并取出值就是固定的时间了,好的，如果元素以固定大小存储。

麻省理工公开课 - 计算机科学及编程导论课程节选