The cold air in the working chamber can convent if the exhaust valve on top of the oven is open, the temperature is controlled constant automatically by digital display instrument.
开启箱顶排气阀可使工作室温之冷空气得以对流交换，温度控制采用数字显示仪表自动恒温调节。
Forced air circulation channel, ensuring the even temperature in the working chamber.
强迫式循环风道，确保工作室温度均匀。
The air inlet can be switched on off with facility. Air-circulation system is made of low-noise import motor, suitable wind direction. The temperature in the working chamber is even.
进风口开关自如，热风循环系统由低噪声进口风机和适合风道组成，工作室内温度均匀。
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