单词 | radio-frequency preheating |
释义 | radio-frequency preheating [`rād·ē·ō ¦frē·kwǝn·sē ¦prē`hēd·iŋ] ENGINEERING Preheating of plastics-molding materials by radio frequencies of 10-100 megahertz per second to facilitate the molding operation or to reduce the molding-cycle time. Abbreviated rf preheating. |
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