People laughed at zhang heng when he first introduced his seismograph , and it was only later that the world recognized his greatness .
当初张衡发明出他的地动仪时,人们都在嘲笑他,只有后来全世界才意识到他的伟大。
Primary study on the magnitude correction for cts-1 digital seismograph in yinchuan seismic station .
银川地震台cts-1数字地震仪震级校正初探。
In the last years of the qing dynasty , the scientific train of thought represented by the seismograph of zhang heng was promoted overseas , and modern seismology came into being .
清朝末年,以张衡地动仪为代表的科学思路在海外得到发扬,诞生了现代地震学。
To monitor earthquake activities in the vicinity of hong kong , the observatory operates a network of eight short-period seismograph stations .
天文台在香港境内设有8台短周期地震计,用以监测香港邻近地区的地震。
October 2006 : a seismograph chart from tiksi , russia , during north korea 's reported nuclear test
2006年10月:朝鲜被报道核试验时,来源于俄国季克西的一张地震波图
Geologists investigating last year 's seismograph records from the earthquake , the largest to strike chile since the 9.5 magnitude earthquake in 1960 , have found that surface waves are key in triggering microquakes in other parts of the world following a large event .
When we 're awake , our neurons chatter in short , frequent bursts . Measured on an electroencephalogram ( eeg ) , these " alpha waves " look a lot like earthquake squiggles on a seismograph .