Yenday ali ndi zinthu zingapo, kuphatikizapo zida ndi zolimbitsa thupi, zopangidwa zambiri zoyera, zolimbitsa thupi, zopanga zigawenga, zigawo zisanachitike.
Hidlok chidama cylindersndimapotoamagwiritsidwa ntchito kwambiri mu lab.
