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Subject: is that which gas stream...?? Помогите перевести, пожалуйста, второе предложение в данном абзацеХХХ introduced a gas centrifuge concept of enriching the dilute
methane in ventilation air. Theory of separation in a gas centrifuge is that which gas stream spinning in a vortex at high velocity inside a cylindrical chamber, centrifugal force acts more strongly on higher weight molecules. So, lighter molecules concentrate at the core, and the heavier molecules at the outer periphery.
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