Light ones are more easily deflected than heavy ones, so the two forms of carbon get separated, and when each atom reaches a detector at its expected arrival spot, it can be counted.

轻的原子较重的更容易转弯，从而能分离两种碳原子，每个碳原子到达预定的监测点，计数器就会计数。

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Although the probe would carry no cameras in the classic sense, its onboard instruments would include a low-energy charged particle experiment, a magnetometer, a cosmic ray detector, and an energetic neutral atom detector.

FORBES: Jump-Starting A Mission To Interstellar Space

Light ones are more easily deflected than heavy ones, so the two forms of carbon get separated, and when each atom reaches a detector at its expected arrival spot, it can be counted.

ECONOMIST: Monitor