Guryaha dheeriga ah ee dheecaanka leh, oo sidoo kale loo yaqaan iskuxirka maskaxda ee pneumatic ama isku haynta maskaxda ama dhululubo farta ah, waxaa loo isticmaalaa in lagu beddelo xoogga axial ee hawada oo loo yaqaan 'trans' ee farta farta, si ay u soo qaadaan ama qabashada shaqada ee u baahan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awoodaan inay si buuxda u awood u yeeshaan. Xiqashada farsamada ee 'pneumatic' ayaa asal ahaan ka soo baxay Japan, hadda waxaa si weyn loogu adeegsaday warshadaha fudud ee Shiinaha. Sida ku xusan qaabka xajirka farsamada ayaa loo qaybin karaa v - nooc ah oo ah {{3mm, oo loo adeegsado isku xirnaanta dhululubo, oo ah 20mm, waxay si wax ku ool ah u hagaajin kartaa hufnaanta waxtarka, iyo sidoo kale yareynta Khatarta qalliinka gacanta.
