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1·The main problems of signal integrity of high-speed digital system include reflection, crosstalk, delay, ringing, simultaneous switch noise, etc.

高速数字系统的信号完整性问题主要为反射、串扰、延迟、振铃和同步开关噪声等。

2·Signal integrity in the circuits design is discussed in this paper, and the major influencing factors are analyzed such as ringing, border distortion, reflection, bounce, crosstalk and jitter.

文章介绍了数字电路设计中的信号完整性问题，探讨了振铃、边沿畸变、反射、地弹、串扰和抖动等各种信号完整性问题的成因和抑制措施。

3·Bell ringing, as a signal of non language communication, was especially prepared for the senile and infirm patients, with a satisfaction rate of 97.37%.

而摇铃主要作为年老体弱患者需要非语言交流的信号，满意率为97.37%。

4·The ringing near a discontinuity in a signal that is caused by incomplete Fourier synthesis, or missing frequencies.

在信号的间断点附近产生的振荡，是因有限的傅立叶合成或频率缺失而造成的。