Replacing JF valve tray, the new type valve trays are applied in atmospheric towers and makes the yield of light oil increased and the economic benefit improved.
英
美
释义
常压分馏塔通过采用新型组合导向浮阀塔板替代原有JF型浮阀塔板;使常压塔收率提高1.;5%25左右。
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