sulfat bariumi
2025-08-15 02:23:56
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，，，，，（Barium Sulphate），。，，、，，。，，BaSO₄。，X， ，，，，。，。。sulead oplumbous oxidexide pbolfat pbo lead oxidelead iii oxidebariumi。，。。 ， ，，。，。 ，。，。，，，。、XCT。，。，，sulfat lead oxiplumbous oxidede pbolead iiipbo lead oxide oxidebariumi。。。。，，，，， barium sulphate uses 。。、。，、。。。，。， ，，
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