when wh-adverbyou personal pronounthink verb, non-3rd person singular presentof preposition or subordinating conjunctiona determinerservomotor proper noun, singular, i personal pronounthink verb, non-3rd person singular presentof preposition or subordinating conjunctionthis determinerrotary adjectivetype noun, singular or massand coordinating conjunctionlinear noun, singular or massmotors noun, plural
a determinerfeedback noun, singular or massdevice noun, singular or masscalled verb, past participlean determinerencoder noun, singular or massis verb, 3rd person singular presentbuilt verb, past participleinto preposition or subordinating conjunctionthe determinerservomotor proper noun, singularat preposition or subordinating conjunctionthe determinerback noun, singular or massend noun, singular or mass.