Four-step Method 四阶段法
four-step method of traffic planning 交通规划四阶段法
four-step reading method 四步阅读法
four-step training method 四步训练法
Four step training method 四步骤培训法
four-step teaching method 学四步教学法
four-step analysis method 四步分析法
four-step planning method 四阶段预测方法
Four step phase-shift method program and least squares phase solution package, have validation, this method is good.
说明：四步相移法程序和最小二乘法相位解包裹程序，已经验证，此方法比较不错。
This paper introduces the basic principles of the band pass filter, laying emphasis on the designing of four-step band pass filter, and gives the details of design method and debug process.
简要介绍了带通滤波器的原理，着重说明四阶带通滤波器的设计方法，并给出设计思路和调试方法。
This paper lays emphasis on the designing of four-step band pass filter, and gives the details of design method and debug process.
重点介绍了四阶带通滤波器的设计方法，并给出设计思路和调试方法。
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