He chose a piece of the CanyonDiablo meteorite, which impacted about 50, 000 years ago in Arizona.
他选择了一块约50,000年前产生于亚利桑那州的峡谷暗黑陨石。
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DiabloCanyon sits on a rise 85 feet above the ocean, beyond reach of what scientists calculate is the largest possible tsunami, says Jim Becker, PG&E’s site vice president at the reactor.