在一种可替代的电路中，每个负载器件(M3, M4)的衬底都与它的漏极相连，并且被偏置在弱反型区工作。

In an alternative circuit, each load device (M3, M4) has its bulk connected to its drain and is biased to operate in the weak inversion regime.

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其中，平板型电除尘器收尘极板表面存在场强和电流弱区，且处理高比电阻的尘粒时容易发生反电晕；

There exist weak zones of electric field and current density on the collecting plate when flat plate is used, and back corona tends to occur when the resistivity of particles is high.

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