求翻译：在几千万年前，地下深处炽热的岩浆沿管子上冲，由于火山口经常被堵死，上升的岩浆在极巨大的压力下冷却。其中含的少量纯碳在这种高温和巨大压力下结晶成为金刚石。是什么意思？

In the tens of millions of years ago, hot magma deep underground on the red along the tube, because the crater is often blocked, rising magma in a very cool under enormous pressure. Which contains a small amount of pure carbon in this high temperature and under great pressure into diamond crystals.

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In several ten million years ago, underground deep place blazing rock magma along pipe overshooting, because the crater dies of suffocation frequently, the rise rock magma cools under the extremely huge pressure.In which contains the few pure carbon crystallize into the diamond under this kind of hi

Before being annual in several ten millions of, the blazing magma is bumped up along the tube in the underground depths, because the crater is often blocked, the magma rising is cooled at the extremely enormous pressure. Among them pure carbon of small quantity included crystallizes becoming diamond