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secondary radiation 【原子能】次級輻射。

secondary sex characteristic

The reason is that charged particles and high - energy photons interact with the rocky shielding material , producing showers of secondary radiation within the meteorite 原因在于帶電粒子與高能光子會與巖石遮蔽物質交互作用,在隕石內部引發二次輻射的簇射。

Secondary radiation is produced when these particles interact with the atoms in the earth s atmosphere 當這些粒子與地球大氣層的原子互相產生影響時,便會產生次級輻射。