| 释义 |
钍tǔ金属元素,符号Th(thorium)。银白色,在空气中逐渐变为灰色,质软,有放射性。经过中子轰击,可得核燃料铀-233,也可用做耐火材料、电极等。{thorium (Th), soft, silvery white radioactive metal element that gradually turns grey when exposed to the air, and from which, through neutron bombardment, uranium-233 nuclear fuel can be obtained, also used as refractory material, electrodes, etc.} |