Chigadzirwa maitiro epurasitiki yakavharwa simbi pombi mukati nekunze 1. Hutsanana, husina chepfu, husina kusvibisa, husiri-microorganism, kuve nechokwadi chehutano hwemvura 2. Kurwisana nemakemikari ekuora, ivhu uye marine biological corrosion, cathodic disbondment 3. Nzira yekuisa ndiyo vakuru, nyore...
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