Richter scale
柯林斯詞典
1. N-SING The Richter scale is a scale which is used for measuring how severe an earthquake is. (地震)里氏級(jí)['the' N]
An earthquake measuring 6.1 on the Richter Scale struck California yesterday. 昨天加利福尼亞發(fā)生了里氏6.1級(jí)地震。
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