And this technique is able to compress all this 25 gigabytes into 45 megabytes without introducing any significant perceptible difference!

这项技术可以将这25GB压缩至45MB，而不会带来任何重大的可视差别！

To the American people, the two candidates and the two parties were so evenly balanced that the scales showed hardly a perceptible difference.

对美国人民来说，两位候选人和两党势均力敌，天平上几乎看不出有什么差别。