| 词组 | melt down |
| 释义 | melt down melt sth down • melt down sth to heat metal until it becomes a liquid and can be used again: ▪ Silver from this period is rare, as it was melted down in the Revolution to fund wars. ▪ The beautiful copper engraving had been melted down to make a tea-kettle. meltdown n C,U a very dangerous situation in which the material in a nuclear reactor melts and burns through its container, allowing radioactivity (energy that is very harmful to living things) to escape. A nuclear reactor is a large machine that produces nuclear energy.: ▪ One incident at Greifswald nearly caused a meltdown in 1976, which would have been a disaster even greater than Chernobyl. |
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