Kodi kuphatikiza kwa zopangira za njerwa zaumbali?

Kuphatikizika kwa zinthu zopangira njerwa zopangira njerwa kumatanthawuza kuphatikizika kwa zinthu zopangira dongo ndi zopangira zopanda pulasitiki kuti zipange matope apulasitiki okhala ndi mphamvu zina zowumitsa. Dongo lomangira la dongo nthawi zambiri limawonetsedwa ndi kuchuluka kwa mchenga wa quartz (tinthu tating’ono 0.25 ~ 0.15mm zomwe zimawerengera 70%, 0.15 ~ 0.09mm zomwe zimawerengera 30%) ndi mphamvu yosinthika mukaumitsa. Nthawi zambiri, dongo lokhala ndi pulasitiki wolimba limakhala ndi mphamvu zomangira zolimba (pali zina, mwachitsanzo, dongo la Nanning ndi loyera kwambiri ndipo lili ndi tinthu tating’onoting’ono, ndipo lili ndi pulasitiki yabwino. pa kuyanika ndi lalikulu, ndipo chifukwa ming’alu ndi lalikulu, youma mphamvu ndi osauka.