Acting • Actuator • Actuators • Advantage • Automati • Compact • Converts • Device • Difficult • Disadvantage • Easier • Efficient • Electri • Expensive • Extend • Fluid • Force • Generate • Handle • Higher • Hydraulic • Into • Less • Linear • Loads • Main • Maintain • Mechanical • Messy • More • Operate • Over • Parallel • Potentially • Precise • Pressure • Require • Retract • Rotary • Rotational • Serial • Single • Spring • Than • They • Two • Types • Uses • Using • Which