Effective radium content
[医] 有效镭含量
🧩 词语组成解析
effective
[ɪ'fɛktɪv]
adj. 有效的;起作用的;实际的，实在的;给人深刻印象;
n. [军]现役兵额，有生力量，精兵;
ef出+fect做，制作 +ive形容词后缀 →做出来的 → 有效的
🗣️ 情景例句
OK. Is that all?
好的。就这样完了吗？
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
then at the height of his military success in the Thirty Years' War,had dictated her measurements and armament.
正处在"三十年战争"的军事鼎盛阶段，他亲自规定了这艘船的规模和武器配备。