| 单词 | 屋面材料 |
| 释义 | 〔zinc〕A bluish-white, lustrous metallic element that is brittle at room temperature but malleable with heating. It is used to form a wide variety of alloys including brass, bronze, various solders, and nickel silver, in galvanizing iron and other metals, for electric fuses, anodes, and meter cases, and in roofing, gutters, and various household objects. Atomic number 30; atomic weight 65.37; melting point 419.4°C; boiling point 907°C; specific gravity 7.133 (25°C); valence 2. See table at element 锌：一种蓝白色带光泽的金属元素，室温下易碎，但加热后可展延。用于制造各种合金，包括黄铜、青铜、各种焊料和镍银，以及给铁和其它金属镀锌，还用于电保险丝、阳极和仪表，以及屋面材料、檐槽和各种家庭用具。原子序数30；原子量65.37；熔点419.4°C；沸点907°C；比重7.133（在25°C时）；化合价2 参见 element〔roofing〕Materials used in building a roof.屋面材料：用来盖屋顶的材料 |
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