mixed rare earth的用法和樣例：
例句
- This method could determine many non-REE in enriched-europium mixture rare earth oxide at a time and it was a rapid method.
該方法能同時測定富銪混合稀土氧化物中多種非稀土元素的含量，提高了分析速度。 - Mixed RE elements could improve the conductivity of pure aluminum with relatively high content of impurities, but had little effect on that with relatively low impurity content.
混合稀土對雜質含量較高的純鋁的導電性有改善，對雜質含量低的純鋁的導電性基本不起作用。
