Background equivalent activity (bea)
[化] 天然本底放射性当量强度
🧩 词语组成解析
equivalent
[ɪ'kwɪvələnt]
adj. 相等的，相当的，等效的;等价的，等积的;[化学]当量的;
n. 对等物;[化学]当量;
equi相等，平均+val力量+ent形容词后缀→力量平等→相等的，等价的
🗣️ 情景例句
She is quite good with her hands.
她的手很巧。
What did the doctor say?
医生怎么说？
It is six o'clock.In the evening, the children usually do their homework, but this evening, they are not doing their homework.
现在是6点钟。晚上，孩子们通常是做作业，而今天晚上，他们没做企业。