Terms containing power-frequency testing transformer

Subject	English	Chinese
hydroel.st.	cascade power frequency testing transformer	串级工频试验变压器
el.mach.	cascade power-frequency testing transformer	串级工频试验变压器
hydroel.st.	power frequency resonant testing transformer	工频谐振试验变压器
wind.	power frequency testing transformer	工频试验变压器
el.mach.	power-frequency testing transformer	工频试验变压器