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采取闷炉法热驻极体制作的传声器具有灵敏度高、稳定度大、寿命长的特点。本文对其驻极工艺及传声器性能进行了介绍。闷炉发热驻极体工艺
Adoption of stuffy furnace method to produce electret microphones with high sensitivity, stability, long life. This article describes its electret process and microphone performance. Stuffy oven fever electret process