常見例句The color of Apatite is often due to the presence of rare earth elements.磷灰石的顔色常取決於存在的稀土元素。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郃稀土氧化物中多種非稀土元素的含量,提高了分析速度。 返回 rare-earth elements