Crime and urban decay can begin to build in neighbourhoods that signal that crime and urban decay has already begun and no one really CARES.
犯罪和城市衰败开始在街区显露，表明犯罪和城市衰退已经开始而人们还没有真正意识到。
2
The results show that the amplitude of the stress signal is the best sensitive to the change of damage among the parameters and it will gradually decay with the increase of damage degree.
结果表明，信号幅值对裂缝损伤的变化最为敏感，且随损伤程度的不断增加呈现出不断衰减的趋势。
3
A simple and flexible signal source of multiple decay was designed with the linear adding of many rc charging signals.