单词 | carborundum |
释义 | carborundum [´kär·bǝ`rǝn·dǝm] MATERIALS A manufactured crystalline material (silicon carbide), prepared by fusing coke and sand in an electric furnace; used as an abrasive in the grinding of low-tensile-strength materials, and as a semiconductor with a maximum operating temperature of 1300°C, to rectify and detect radio waves. |
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