Contohnya dari gear D, anda ingin tolak ke N. Sekiranya tak tekan tombol equipment, anda tak dapat tolak lebih kerana ia tersekat di N. Tetapi jika anda tekan tombol, anda boleh menolak equipment terus ke R. An automatic transmission normally has multiple planetary equipment set. They get the job done https://beckettxbbbb.blogunteer.com/31596728/details-fiction-and-gearbox-auto