110kV direct step-down rectifying equipment
buck step-down switching power supply
capacitive step-down circuit
continuous step-down energy dissipater
crossed step-down-stress
direct step-down rectifying
double-crossed step-down-stress testing
Dual Step-Down Controller
formally step down from the party’s chairmanship
grouped step-down stress testing
loaded regulating step-down transformer
Secondary voltage step-down
sill of energy dissipator with step-down floor
Steam-blowing by Step-down Pressure
steam-line blowing by step-down pressure