seismograph

• n. 地震仪

seismo-,地震，-graph,记录。

seismograph (n.)

"instrument for measuring the motions of an earthquake," 1858, from seismo- + -graph. Based on Italian sismografo, coined and invented by Luigi Palmieri (1807-1896), director of meteorological observation on Mount Vesuvius. Related: Seismographic; seismography (1865).

1. The earliest seismograph was invented by a Chinese named Zhangheng in the Han dynasty.

中国汉代的张衡最早发明地震仪。

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2. Today, quartz crystal clocks are generally used on the seismograph stations.

目前, 地震台站一般采用石英晶体钟.

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3. These things entail that the seismograph becomes rather bully.

这使得地震仪体积笨重.

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4. A seismometer is a seismograph whose physical constants are so well known.

地震计是一种地震仪器,其物理常数是已知的.

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5. Any earthquake at any distance from a calibrated seismograph is nowadays assingned a magnitude.

现在对于距一标定过的地震仪任何距离处的任何一个地震,都可用一个震级确定之.

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