Specifically, it relates to {HEAD ~ a control system} in {TAIL ~ a transfer} means that moves a load with an assist force of an operator in the operators desired direction and at the operators desired velocity when the operator imposes the force on the load, which load is suspended by a rope in a position or is vertically moved by winding a hoist drum up and down in one direction and a reverse direction by a servomotor driven in those directions, or which load is horizontally carried by a crane 
Specifically , it relates to { HEAD ~ a control system } in { TAIL ~ a transfer } means that moves a load with an assist force of an operator in the operators desired direction and at the operators desired velocity when the operator imposes the force on the load , which load is suspended by a rope in a position or is vertically moved by winding a hoist drum up and down in one direction and a reverse direction by a servomotor driven in those directions , or which load is horizontally carried by a crane
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