A very hard, black, crystalline solid, used as an abrasive, in cutting and grinding tools, and as a refractory material. Frequently attributive.
| 单词 | θ216971 |
| 释义 | society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > other synthetics (5) carborundum1891 A very hard, black, crystalline solid, used as an abrasive, in cutting and grinding tools, and as a refractory material. Frequently attributive. impression compound1903 any impression material manufactured from a number of different ingredients, esp. one that is a non-elastic thermoplastic solid. Mylar1952 A proprietary name for: a form of polyester resin which is the condensation product of ethylene glycol and terephthalic acid and is used chiefly in… carbon fibre1960 A fibre of carbon; spec. a slender polycrystalline filament, often very strong, made by the pyrolysis of organic textile fibres and consisting of… Kevlar1974 A proprietary name for a synthetic fibre of high stiffness and tensile strength, used mainly as a reinforcing agent in composite materials and as a… |
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