Methods 38 cases obtained ischemic lunarbone necrosis were analyzed and compared their X-rays.
方法分析38例已确诊的月骨缺血性坏死病例，比较各期X线片所见。
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A new study suggests that, contrary to recent work, the lunar interior is as bone-dry as scientists thought 40 years ago, when NASA astronauts lugged home the first moon rocks.
Since the Apollo missions brought back the first clumps of lunar soil and rock in the 1960s, scientists have worked on the assumption that the moon is bone dry.