钐

Samarium is a chemical element with the symbol Sm and atomic number 62.
钐是一种化学元素，其符号为Sm，原子序数为62。
Samarium-147 is a radioactive isotope of samarium used in dating rocks and meteorites.
钐-147是钐的一种放射性同位素，用于测定岩石和陨石的年代。
Samarium-neodymium dating is a radiometric dating method used in geochronology to establish the age of rocks.
钐-钕测年法是地球年代学中用来确定岩石年龄的放射性测年方法。
Samarium oxide (Sm2O3) is used as a catalyst in certain chemical reactions.
氧化钐(Sm2O3)在某些化学反应中用作催化剂。
Samarium cobalt magnets are high-performance permanent magnets, which have strong magnetic properties.
钐钴磁铁是一种高性能永久磁体，具有很强的磁性能。
The addition of samarium to some alloys can improve their mechanical properties and corrosion resistance.
在一些合金中添加钐可以改善其机械性能和耐腐蚀性。
Samarium has several applications in nuclear reactors due to its unique neutron-absorbing properties.
由于钐独特的中子吸收性质，它在核反应堆中有多种应用。
Samarium is a rare earth metal that is often found together with other rare earth elements in mineral deposits.
钐是一种稀土金属，通常与其他稀土元素一起存在于矿床中。
Samarium is used in the production of compact fluorescent lamps to improve color rendering.
钐被用于紧凑型荧光灯的生产中以提高色彩还原度。
Some medical treatments involve using samarium-153, which emits beta particles for targeted radiotherapy against bone metastases.
一些医学治疗涉及使用发射β粒子的钐-153，用于针对骨转移癌的靶向放疗。