It introduced a completely new music-player system, called Zune, modeled, incredibly, on Apple's closed-architecture model.
它推出一款被称为Zune的全新音乐播放系统，完全模仿了苹果封闭结构模式。
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By heat balance analysis of the whole regenerative system, which is regarded as a closed thermodynamic system, the calculation model on the influence of HPs removal on heat economy of unit is derived.
In order to speed up the simulation process, has established the SG1524B chip behavior model according to the switching power controller behavior in closed-loop system.