定义
the Richter scale: 里氏震级
The Richter scale is a measurement of seismic activity named after American scientist Charles Richter. 里氏震级是用来测量地震等级的,是以美国科学家查尔斯·里克斯而命名的。
a scale: 规模,刻度,测量
- "China: an earthquake measuring 8.1 on the Richter scale has hit central China, leaving 6,000 people dead and the Chinese city of Xangxingxongdo in ruins."
- "Seismic experts measured it at nearly 6.0 on the Richter scale."
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