"钐"是个多义词，它可以指钐（化学元素）,钐（汉语汉字）。
n. samarium
misc. big sickle ; a surname ; cut with sickle
最为有名的就是铀- 238衰变为铅- 206的半衰期为45亿年，当然放射性铷和钐也同样对测算几十亿年前的物体的年龄很有用。
Most famously, uranium-238 decays into lead-206 with a half life of 4.5 billion years, though radioactive rubidium and samarium are also useful for dating things billions of years old.
高性能的永磁体如钐钴、钕铁硼的问世使得永磁无刷直流电动机的性能大大提高了。
The availability of high performance magnets, like samarium cobalt and neodymium-boron-iron, has made it possible to improve the performance of brushless dc motors significantly.
将具有优良电磁性能的钐钴永磁用于同轴磁控管磁路系统中，可以以较小体积激励出磁感应强度高的近均匀磁场。
Sm-Co permanent magnets were used in the magnetic circuitry of a coaxial magnetron to produce a small volume, high intensity magnetic field.
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