经分析认为：沿配汽管全程蒸汽加热不均是导致火电厂除氧器投运过程中加热振动的主要原因。
By analyzing the reasons causing deaerator vibration when unit starting, it is considered that the main cause is uneven steam heating along the whole distributing tubes.
但这种情形对于敏感运放的输入端晶体管是极为不利的。
But this situation is unhealthy for sensitive op-amp input transistors.
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