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1974年,科学家们在黑海做深海钻探时,发现了一种外表像冰雪的可燃物,当时被视为科学上的奇物。在场的一位科学家回忆说:“这东西看上
When deep-sea drilling was conducted in the Black Sea in 1974, scientists discovered a combustible material that looked like ice and snow and was then regarded as a curiosity in science. A scientist present recalled: "This thing fancy