Kuti injini igwire ntchito bwino, pamafunika mpweya wabwino wokwanira kupuma. Ngati mpweya wowopsa ku zida za injini (fumbi, colloid, alumina, chitsulo cha acidified, ndi zina) utakokedwa, kulemedwa kwa silinda ndi pisitoni kumawonjezeka, zomwe zimapangitsa kuti silinda ndi pisitoni zizigwirizana ...
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