3维工频电场计算
three-dimensional harmonic electric field calculation
50Hz工频干扰
50hz Frequency Interference
50Hz power frequency interference
50 Hz interference
50Hz工频陷波器
50Hz power frequency notch filter
变频-工频切换
switching between variable frequency and industrial frequency
变频-工频同步切换
VF-FF synchronous switching
变频转工频
Frequency Conversion to Working Frequency
VF to WF
地面最大工频电场强度
Maximum Power Frequency Electric Field Gradient on Ground
短时工频耐受
Short-time Power Frequency Tolerance
短线圈工频前炉
short coil normal frequency forehearth
非工频暂态分量
non-power frequency transient component
高稳定、低失真工频信号源
High Stable and Low Distortion Operating Frequency
高压工频电场
High voltage power frequence electric field
工频X射线摄影机
Mains frequency radiographic equipment
工频X线机
industrial frequency X-ray unit
工频参考电压
power frequency reference voltage