Most experts believe a huge impact early in Earth's history ejected material into space that became the.
绝大多数的专家都相信,月球是在一个巨大行星与早期地球碰撞过程中所产生的碎石组成的。
Most experts believe a huge impact early in Earth's history ejected material into space that became the moon.
绝大多数的专家都相信,月球是在一个巨大行星与早期地球碰撞过程中所产生的碎石组成的。
When a normal pulsed laser radiation is focused to irradiating a target of metal or isolator, a space electric signal will be observed in the vaporized and ejected material before the target.
当普通脉冲激光聚焦照射金属或绝缘体靶时,在靶前面激光产生的蒸汽和溅射物质中,观察到空间电信号。本文报导了有关实验结果,并作了定性分析。
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