可变电容器通常不用于定时电路，因为它们的容量太小，实际和价值观念的范围提供非常有限。

Variable capacitors are not normally used in timing circuits because their capacitance is too small to be practical and the range of values available is very limited.

youdao

可变电容器通常不用于定时电路，因为它们的容量太小，实际和价值观念的范围提供非常有限。

Variable capacitors are not normally used in timing circuits because their capacitance is too small to be practical and the range of values available is very limited.

youdao