To measure this, archaeologists use a device called an accelerator mass-spectrometer.

考古学家使用一种被称为加速器质谱仪的设备进行测量。

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To measure this, archaeologists use a device called an accelerator mass-spectrometer.

考古学家使用一种被称为加速器质谱仪的设备进行测量。

youdao