传统的半导体工艺是主要采用铝作为金属互联材料(Interconnect)，在信号延时(signal delay)上已经受到限制。人们寻找到了新的材料来满足对电阻的要求，这种材料就是铜。
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如果相位与频率的变化关系是线性的，那么滤波器仅仅会使信号延时一个常数量。
If the phase and frequency changes in the relationship is linear, then the filter would signal delay is only a constant number.
实车试验表明，滤波后的轮速信号延时小，响应速度快，平滑效果比较理想，可以用来直接估计车速。
The real vehicle tests indicate that the filtered wheel speed signal has small time delay and quick response with relatively ideal smoothing effects and can be used for direct speed estimation.
基于对道路交叉路口车流量数据进行采集和统计分析，运用模糊理论构建了交通灯信号延时模糊控制器。
Based on the collection and statistics of the traffic flow for crossroads, the fuzzy controller for the delay time of traffic lights was constructed by the theory of fuzzy.
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