维斯必须蒸馏、加热并使空气样品通过吸附剂，以除去二氧化碳和氪等会污染极灵敏的探测器的气体。
Weiss had to distill, heat and pass the air samples over adsorbents to remove gases such as carbon dioxide and krypton that could foul the extremely sensitive detector.
那是因为，要将二氧化碳气体从不受人类介入的大气中除去，也要花上几千年时间。
That's because it can take thousands of years to remove CO2 from the atmosphere without human intervention.
那是因为，要将二氧化碳气体从不受人类介入的大气中除去，也要花上几千年时间。
That's because it can take thousands of years to remove CO2 from the atmosphere without human intervention.
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