The proposed method doesn't need hardware synchronization circuit and can perform the calculation of fundamental positive sequence component of the supply voltage in real time.
这种方法不需要硬件同步电路，能实时地计算电源电压中的基波正序分量。
2
Foam-positive protein is the most important component in beer foam, Z4 protein amounts to about 70% in beer foam protein.
泡沫活性蛋白质是啤酒泡沫中最重要的组成部分，其中Z 4蛋白质约占啤酒泡沫蛋白质z的70%。
3
Eastward component t shows weak positive anomaly in the studied region.