Charlson had been puzzling over what unknown particles provide the nuclei on which moisture condenses, forming clouds.
Charlson一直对给空气中的湿气冷凝成云提供凝结核的未知粒子存有疑惑。
Charlson had been puzzling over what unknown particles provide the nuclei on which moisture condenses, forming clouds.
Charlson一直对给空气中的湿气冷凝成云提供凝结核的未知粒子存有疑惑。
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