radioactive substance的用法和樣例:
例句
- The radioactive substance can kill the nervous cells in the brain.
這种放射性物質會殺死大腦的神經細胞。 - Because of this radiation they said the substance was radioactive.
由於這種輻射性現象,他們把該種物質稱為放射性物質。 - In the deep mantle the highest possible concentration of radioactive materials is limited by the condition demanding temperatures below the melting point.
在地幔深部,放射物質最高的可能濃度受溶點以下的溫度條件所限制。