在密封熔炼炉含0.01%HFC134a的 关键字: 镁合金; 密封炉; 保护气体; 表面膜[gap=1547]Key words: magnesium alloy; sealed furnace; protective gas; surface film
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一个密封条或门上有漏缝的微波炉可能使毗邻的食物变熟但这很少见。
A microwave with a leaky seal or door may conceivably cook adjacent foods, but that would be rare.
无氧化段由入口密封室，废气预热区，直接加热区，炉喉，废气排放系统组成。
The non-oxidizing zone is consisted of entry sealed room, waste gas preheating zone, direct heating zone, and furnace nozzle and flue gas exhausting system.
分析了热辐射实验的原理，提出了使用玻璃密封系统和用电热炉作热源的改进方案。
The experiment principle of heat radiation is analyzed. A proposal is presented that a sealed glass system and an electrothermal stove are used.
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