| 单词 | 防火 |
| 释义 | 〔bismuth〕A white, crystalline, brittle, highly diamagnetic metallic element used in alloys to form sharp castings for objects sensitive to high temperatures and in various low-melting alloys for fire-safety devices. Atomic number 83; atomic weight 208.980; melting point 271.3°C; boiling point 1,560°C; specific gravity 9.747; valence 3, 5. See table at element 铋：白色、晶状、易碎、高度抗磁的金属元素，用于高温敏感物体的合金中，以铸成锋利物件，多种用于防火安全设施的低熔点合金。原子序数83；原子量208.980；熔点271.3°C；沸点1560°C；比重9.747；化合价3,5 参见 element〔fireproof〕Impervious or resistant to damage by fire.防火的，耐火的：不受火损害或抵抗火的〔stress〕stressed basic fire safety.着重于基本的防火安全〔fire〕a fire chief; fire prevention.消防队长；防火〔flameproof〕Resistant to catching fire; flame-retardant.防火的：能防止着火的；耐火的〔asbestos〕Either of two incombustible, chemical-resistant, fibrous mineral forms of impure magnesium silicate, used for fireproofing, electrical insulation, building materials, brake linings, and chemical filters.石棉：两种不纯镁硅酸盐的不燃、抗化学变化、纤维素矿物质形式中的一种，用作防火，电绝缘，建筑材料，煞车隔板和化学过滤器〔proof〕waterproof watches; a fireproof cellar door.防水表；防火地窖〔antimony〕A metallic element having four allotropic forms, the most common of which is a hard, extremely brittle, lustrous, silver-white, crystalline material. It is used in a wide variety of alloys, especially with lead in battery plates, and in the manufacture of flame-proofing compounds, paint, semiconductor devices, and ceramic products. Atomic number 51; atomic weight 121.75; melting point 630.5°C; boiling point 1,380°C; specific gravity 6.691; valence 3, 5. See table at element 锑：一种金属元素，有四个同素异形体，最常见的是一种硬而脆的银白色发光晶体物质。锑普遍用于各种合金，特别是和铅一起用于电池极板，制造防火合成物、油漆、半导体装置和陶瓷制品。原子序数为51；原子量为121.75；熔点为630.5°C；沸点1,380°C；比重为6.691；化合价为3,5 参见 element〔firewall〕A fireproof wall used as a barrier to prevent the spread of fire.防火墙，隔火墙：作为一道屏障阻止火蔓延的防火的墙〔Dynel〕A trademark used for a copolymer of vinyl chloride and acrylonitrile employed in making fire-resistant, insect-resistant, easily dyed textile fiber.代纳尔：一种用于氯乙烯和丙烯腈共聚纤维商标名，该产品用于制造防火、防虫和容易染色的纺织纤维 |
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