I mean, you want to get to the underlying characters, but it's one step removed.

我是说，你想得到基本字，但它只有一步之遥。

But, the character set was really too small to do anything terribly sophisticated.

但是，字的太小，无法做任何非常复杂的事情。

And Ariel itself has fairly wide characters, which further exacerbates that.

而Ariel本身就拥有相当宽泛的字，这更加剧了问题的严重性。

So in Swift 4, we have vastly simplified this by removing all this impedance, and now strings are range-replaceable collections of characters.

所以在 Swift 4 里，我们极大地简化了这个过程，去了阻碍，现在字串可以大范围替换字了。

That allowed glorious interfaces like this DOS example, which is built entirely out the character set you just saw.

那使得像这个DOS示例这样的华丽界面成为可能，它完全由你刚才看到的字构建而成。

So, various extensions to ASCII were made that added new semigraphical characters, like IBM's CP437 character set, seen here, which was used in DOS.

因此，信息交换标准代码进行了各种扩展，添加了新的半图形字，比如IBM的CP437字，如下所示，它曾在DOS中使用。

In the story, the author conceives a universe in the form of a vast library containing all possible 410-page books of a certain format and character set.

在故事中，作者构想了一个由所有可能的410页书籍组成的巨大图书馆形式的宇宙， 这些书籍具有特定的格式和字。

And the same machine could be sold in different places without having to modify its hardware, for a screen-based haptic keyboard could be programmed to use whatever character set was appropriate to the local language.

同一台机器可以在不同的地方销售而无需修改其硬件，因为基于屏幕的触觉键盘可以编程使用适合当地语言的字。