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词汇 picocuries
释义 picocuriesCOCA¹⁹⁷¹⁴⁷
基本例句
🌏皮克居礼;微微居里
Radon, a product of the decay of natural uranium, also exceeded its proposed EPA maximum contaminant level in65% of wells tested 300 Picocuries per liter.
氡,是自然界铀元素衰变的产物,在被抽样的饮水井中,远远超标65%每升中含有300皮居里氡。 yeeyan
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