melt through

基本解释

The next question is whether the hot cores will actually melt through the containers, spreading the radioactive materials, shooting them into the ground.
接下来的问题是，反应堆的高温和谐是否已经在容器内融化了，并且释放了放射性物质。
High-level waste is the most dangerous because it can melt through containers and is so radioactive it would be fatal if someone was near it for a few days.
高放射性废料是最危险的，因为它能熔穿容器，而且放射性强到在它旁边的人只需几天就有致命危险。
Uncontrolled, the extreme heat could melt through or crack the reactor vessel causing a possibly explosive release of dangerous radioactive materials into the atmosphere.
如果反应堆燃料棒温度不加以控制的话，核反应堆的温度将超过一定程（2200度），可能会造成核燃料融化爆炸，使得危险的放射性物质进入大气层。

NASA's scientists have designed a device that would be carefully sterilised, and would then melt its way down through the ice, allowing the melt-water to freeze behind it to prevent contamination.
ECONOMIST: Planetary pretenders
Meanwhile, the Memphis melt shop has gone through three managers and one technical glitch after another.
FORBES: Iron Wills
And the peace process is now facing a test, as the snows melt in the mountain passes through which militants cross into the Kashmir valley from the Pakistani side.
ECONOMIST: Kashmir