Preparation of rock samples 岩样制备
source rock samples 源岩样品
molten rock samples 熔岩样品
standard rock samples 标准岩石试件
analysis of rock samples 岩石样品测定
average method rock samples 平均方法
So, what evidence of a liquid water environment did we find in rock samples taking from the oldest rocks on Earth?
那么,在从地球上最古老的岩石中提取的岩石样本中,我们发现了什么液态水环境的证据呢?
If we had rock samples to study, we'd know whether these small craters were formed by impacts during the final stages of planetary formation, or if they resulted from later meteor showers.
如果我们有岩石样本用于研究,我们就能知道,这些小陨石坑是在行星形成的最后阶段被撞击形成的,还是后来的流星雨造成的。
Collect Rocks Every few hundred feet, scientists collect rock samples for study.
科学家按几百英尺的间隔收集岩石样本用于研究。
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