求翻译：由表1可知, 影响电能质量的暂态现象根据电流、电压的波形可分脉冲暂态和振荡暂态两种, 它们主要是由雷击线路和投切电力设备引起的。是什么意思？

Transient phenomena affecting power quality pulse transient and oscillatory transient current and voltage waveforms can be divided into two kinds, which are mainly caused by switching electrical equipment from lightning lines and we can see from Table 1.

From Table 1, we can see that impact power quality of transient phenomena in accordance with the current, voltage-pulse wave can be transient and oscillatory transient two, they are used mainly by lightning strikes in all lines and electrical equipment.

May know by Table 1, affects the electrical energy quality the transition condition phenomenon basis electric current, the voltage profile separable pulse transition condition and the vibration transition condition two kinds, they mainly are and throw by the thunderstroke line cut the power equipmen

From table 1, affecting power quality transient phenomena on the basis of current and voltage transient waveform can be transient and pulse oscillation of two, they are mainly caused by the lightning circuit and switching power devices.

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