lead rotor in a sentence

• They have three-lead rotors and stators like the stator described above, and can be transmitters or receivers.
• There are synchro-like devices called transolvers, somewhat like differential synchros, but with three-lead rotors and four-lead stators.
• Resolvers with four-lead rotors can rotate [ x ] and [ y ] coordinates, with the shaft position giving the desired rotation angle.
• It's difficult to see lead rotor in a sentence .