Lub aperture ntawm pellet zeb tuag siv rau miv litter pellet feem ntau yog nyob nruab nrab ntawm 1.3 mus rau 3.0 hli, vim miv litter yog txias pelleting, yog li compression ratio yog tsawg (nws yog hais txog 1: 3 - 1: 5).Hanpai nplhaib tuag qhov yog teem kom zoo, lub qhov saum npoo yog du raws li daim iav, qhov paug tawm yog du thiab tag nrho, kev tsim khoom tau nce ntau dua 30% piv nrog cov phooj ywg.Yuav kom tswj tau qhov sib xws ntawm cov khoom siv sab hauv