地震等级 [
dì zhèn děng jí]
earthquake magnitude
- 那次旧金山发生地震的等级记录为芮氏7.8级,是一次非常大的地震。
The San Francisco earthquake registered 7.8 on the Richter scale, making it a major earthquake. - 众所周知,地质学家能用地震检波器来测量和定位地震发生的等级和位置。
As is well known, geologists can measure and locate an earthquake with a seismometer. - 他指出,核爆炸源比相同等级的地震或普通爆炸小的多。
He says a nuclear explosion originates from a much smaller source than an earthquake or conventional explosion of the same magnitude.
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