低厚的云是辐射不可穿透的。

Low thick clouds are not transparent to radiation.

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人体将他当成钾（一个重要元素），它可以穿透软组织和肌肉使整个身体受到辐射。

The human body treats it like potassium, an essential element, and it can penetrate soft tissue and muscle to give off whole-body radiation, he said.

youdao

氚发出的辐射很弱，在空气传播不远，不能穿透皮肤。

Tritium emits a weak form of radiation that does not travel very far in the air and cannot penetrate the skin.

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