Nkigice cyo kugenzura sisitemu yo gutwara ibintu, valve ifite imirimo myinshi, nko guhagarika, kugenzura, gutandukana, gukumira impanuka, gutandukana, kugabanya umuvuduko, nibindi. Hariho ubwoko bwinshi nibisobanuro bitandukanye.Hamwe niterambere rihoraho ryikoranabuhanga rya valve, porogaramu fie ...
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