Zonyamula mpweya kompresa ndi kubowola zipangizo ntchito kwambiri pomanga misewu ndi njanji. Kunyamula mpweya kompresa ndi kusintha kusuntha ndipo angapereke mphamvu yamphamvu ntchito. Zopangira pobowola zimatha kukuthandizani kuti muzichita bwino mumsewu ndi njanji.