Kuvala kumapangidwa ndi zinthu ziwiri zomwe zimakanikizana pakati pa liner ndi zinthu zophwanya.Panthawi imeneyi, zinthu zing'onozing'ono kuchokera ku chinthu chilichonse zimasiyanitsidwa.
Kutopa kwakuthupi ndichinthu chimodzi chofunikira, zinthu zina zimakhudzanso nthawi ya moyo wa ma crusher, monga zomwe zalembedwa pansipa:
Nthawi yotumiza: Oct-17-2022