Makinawa amapangidwa ndi chidebe, zopalasa zokopa ndi magawo osinthika;螺旋桨nthawi zambiri amapangidwa 1 wosanjikiza kapena 3 zigawo, wononga wononga akunja汇聚ndi zinthu pakati kutsogolo mbali ziwizi wamkati wononga amatumiza zinthu ku mbali ziwiri kuchokera pakati, kuti apange对流kusakaniza。cubage akhoza kupangidwa round, kotero jekete akhoza kuseweredwa anachita and di kuyanika。