He used another rock as a hammer to hit the gold-colored lump.

他用另一块石头当锤子去击打那个金色的凸块。

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He could sense the right place to hit so that the rock crust would cleave and reveal the coal, in the same way that a sculptor can sense exactly where to hammer a chisel into a stone.

他可以感觉到正确的敲击位置，这样岩石的外壳就会裂开显出煤矿，正如雕塑家可以精确知道在石头的什么位置而用凿子敲击一样。

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A second team led by William Hammer of Augustana College in Rock Island found the 200 million-year-old plant-eater's fossils on a mountaintop 13,000 feet high near the Beardmore Glacier.

由洛克岛奥古·斯塔纳学院的威廉·哈默领导的第二小组在比尔德·莫尔冰川附近1.3万英尺高的山顶发现了距今有两亿年的食草恐龙化石。

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Its first action was just to hammer down briefly on a rock target last weekend - a simple check to prove the machinery was behaving as it should.

BBC: Curiosity Mars rover takes historic drill sample

Scientists need to be sure that when the big hammer tool turns in a rock it breaks the surface into a useable powder that will not clog or damage the sample handling mechanism.

BBC: Curiosity Mars rover deploys its rock brush

He said the drill diameter would be reduced from 28 inches to 26 inches until the hammer had cleared the hard rock but added that the slightly smaller diameter would not cause problems for the rescue.

CNN: STORY HIGHLIGHTS