Ihe mejupụtara ya bụ tebụl na-arụ ọrụ, usoro igbu egbu, usoro ntụgharị, ngwaọrụ na-eduzi, okpokolo agba na igbe ọkụ eletrik.The positioner bụ ihe pụrụ iche ịgbado ọkụ ihe enyemaka akụrụngwa, nke kwesịrị ekwesị maka ịgbado ọkụ ọnọdụ nke slewing ọrụ iji nweta ezigbo usoro ...
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