| 释义 |
铋bì金属元素,符号Bi(bismuthum)。白色或粉红色,质软,不纯时脆,凝固时有膨胀现象。用来制低熔合金,可做保险丝、安全阀等。{bismuthum (Bi), white or pink soft metal element, which is fragile when impure and expands when it solidifies; used to produce low-thermo metal, and to make fuses, safety valves, etc.} |