It deals, of course, with the techniques of music, but only in order to show how technique is directed toward expressive aims in music and toward the listener's musical experience.
当然，它涉及音乐的技巧，但只是为了表明技巧是如何指向音乐的表达目的和听众的音乐体验的。
2
Instead of Fielding arbitrary requests in an arbitrary order, an application becomes a unified, directed conversation with a user.
应用程序不再是应付以任意次序到达的任意请求，而是变成了与一个用户进行统一且直接的交谈。
3
The cutter is directed to move along each line segment one by one in order to generate the smooth circular path.