In this paper a set of simple equations are taken as the basis for determining Z1.

本文提出以一组简单公式作为选择z_1的依据。

youdao

This one's a little harder to get excited about, but it's a replacement for their Z1 series they introduced last year.

ENGADGET: Sony explores new letters of the alphabet: intros new Vaio M, Vaio T, and Vaio B PCs