追踪日本地震关键词.doc

今年3月发生在日本的9.0级大地震，是日本有观测记录以来规模最大的地震，加上其引来的海啸和核泄漏事故，这次地震至今都备受全世界的关注。就让我们来了解一下在这次灾难性事件中高频出现的一些词语吧！

Plate Tectonics 板块构造论

Definition：A scientic theory which describes the large scale motions of Earth's lithosphere.

Epicenter 震中

Definition：The center of the earthquake,often miles underground.

1.6 Microseconds 1.6微秒

Definition：Number of microseconds the earth's spin was increased by the Japanese earthquake which happened on Mar 11th,2011.

Half-Life 半衰期

Definition：The time it takes radioactive material to expand one half of its radioactivity.The longer the half-life,the more dangerous the material.

Cesuim-137 铯137

Definition：A metal of the alkali group that can signal the presence of a nuclear reaction.

Chernobyl Disaster 切尔诺贝利核泄漏事件

Definition：The world's worst nuclear accident which happened in Ukraine in 1986.

Meltdown 核熔毁

Definition：A term generally referring to a nuclear meltdown or the melting of a nuclear-reactor core as a result of a serious nuclear accident.

Fukushima 50 福岛50死士

Definition：The fifty workers serving as the final defense against a catastrophic meltdown at Fukushima Daiichi.

Rolling Blackout 轮流停电

Definition：Also referred to as load shedding,is an internationally-engineered electrical power outage where electricity delivery is stopped for non-overlapping periods of time over geographical regions.