This slogan is self-restricting, since it calls for better and more economical results, that is, for better quality and lower cost, which precludes greater and faster results that are unrealistic.

• 这个口号本身就限制了它自己，因为有好、省，既要质量好，又要少用钱，那个不切实际的多，不切实际的快，就不可能了。