The automatic design program of film is made with the principle of two-step design and the orthogonal testing method.

本文采用二次设计原理，结合正交试验法编制膜系自动设计程序。

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Not only is the new design unfriendly to home entertainment centers (where most PS3s reside, we'd argue), but it feels cheap and unstable -- a distinct step down from the previous two models' front-loading tray design.

ENGADGET: PlayStation 3 Slim review (late 2012): is the third time a charm?