系统模型中包含了用集总参数和相移动边界法建立的热交换器动态模型，以及压缩机和膨胀阀的稳态流动模型。
The system model comprises the dynamic heat exchanger model based on the lumped parameter method and moving phase boundary method, and the stable flow models of compressor and expansion valve.
简介了当今流行的JPEG有损压缩技术和相移技术。
The popular lossy-JPEG image compression arithmetic and phase-shifting technology are introduced.
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