模拟有源滤波器能集成化的关键是由于采用了为抵偿制造容差，工作时元件值漂移的自动调节系统。
The analog active filters can be fully integrated for no other reason than that the automatic tuning systems against fabrication tolerances and component value drifts during operation are adopted.
容差和工艺余量分别是控制零件制造误差和补偿产品装配累积误差的重要参数。
Tolerance restricts manufacturing error of part, and allowance redeems the error that comes into being in the process of product assembly.
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