1.(在打字机上)隔行打印
1.to type or print text with a blank line between each typed or printed line
1.Your title should be in upper case , centered and placed about two double spaces beneath this block of information.
题目必须大写，置中并放置于上述资讯的双行间距之下。
2.Center your title about a third of the way down your first page, and begin your opening paragraph two double spaces beneath your title.
标题写在第一页三分之二高度的中间，与你的开头段间隔两个两倍行距。
3.To break your writing up into paragraphs, use double spaces between your paragraphs.
在你的段落之间使用两行间距，将你的作品分成一些段落。
4.Using double spaces instead of single spaces in your code and styles adds up, too.
在代码和样式中使用双空格代替单空格也会增加尺寸。
5.New Evolutionary Genetic Algorithm by Searching in Double Spaces
双空间搜索进化的遗传算法