通过软件实现的数字滤波，减少了测量噪声。
And we design a digital filter realizing by software to reduce the measure noise.
笔者根据我院的工作实际谈谈如何通过软件实现对医院收费的管理和稽核。
According to practical situation of our hospital, the author talks about how to manage and check hospital charges by software.
这种变化通常是自动进行，即不需要人为的改变电路连接，而是通过软件实现放大器增益的改变。
This kind of change usually goes on automatically, it does not need artificially changing circuit to be joined, but realizes the change of the amplifier gain through the software.
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