thulium

n. 銩

銩Tm

學術名詞

• 銩：化學元素、地球科學、電機工程、礦冶工程、金屬材料、核能
• 銩Tm：電力工程
• Tu：電力工程

英文釋義

1. a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime