I-valve iyithuluzi lokulawula ukugeleza, ukucindezela, kanye nendlela uketshezi. Uketshezi olulawulwayo kungase kube uketshezi, igesi, ingxube ye-gas-liquid, noma ingxube ewuketshezi oluqinile. I-valve ngokuvamile ngomzimba we-valve, ikhava, isihlalo, izingcezu ezivulekile nezivaliwe, indlela yokushayela, izimpawu nezinsimbi, njalonjalo. I...
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