这可能是因为柱箱起始温度设定值过于接近室温。
This can be caused by the initial oven temperature being set too close to room temperature.
设计生产的低温冷却装置的温度设定值在20华氏以下，采用液体循环冷却。
TEMPEST specializes in the design, engineering and manufacture of low temperature chilling systems. Low temperature is defined as 20 deg F and below for fluid set points.
仪器开始工作，箱内温度逐渐达到设定值，经过所需的培养处理时间后，处理工作完成。
The instrument starts to work, the temperature in the cabinet reaches the set degree gradually, and the treatment will be completed after the required cultivation period.
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