【运输】杠杆控制【物理】杠杆操纵

lever switch with lost motion

throttle lever

toggle-lever press operated by eccentrics, cranks

casing of switch with a handle serving a purpose other than the actuation, lever switch

spring-clip contact lever switch with knife contacts and spring-clip contacts

returning of controlling lever to its neutral position elevator (lift)

toggle (toggle lever)

siphon (pipette, syringe, lever, lifter)