【电】 thyratron inverter
【医】 switch valves; thyratron
athwart; contradictorily; counter; disobey; go against; inverse
【医】 contra-
in reverse; on the contrary; turn over
【医】 contra-; re-; trans-
implement; organ; utensil; ware
【医】 apparatus; appliance; crgan; device; organa; organon; organum; vessel