The handoff criteria are based on absolute and relative signal strengths. The performance criteria are the average number of handoffs and the average handoff delay.
这种交换标准是建立在绝对和相对信号强度基础上的，其性能指标即平均交换量和平均交换延迟。
On the average of two line chroma signal in succession, delay demodulator made color image vertical resolution reduce, the paper analyses and discusses this question.
延时解调器将相邻二行的色度信进行平均使彩色图象垂直分解力下降，本文对这一问题进行分析和讨论。
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