...利用气体源质谱仪(gas source mass spectrometer)测量来自阿波罗任务采回的月球玄武岩以及火山玻璃珠(volcanic glass beads)中的氯同位素组成,以检测其中的含水量。
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岩架上覆盖了厚厚的火山灰烬,其间点缀着火山玻璃珠和被称之为火山毛(Pele ' s hair)的熔岩细线。
The ledge was covered with heavy ash, called tephra, and speckled with droplets of volcanic glass and delicate lava threads known as Pele's hair.
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