Many Double Block and Bleed isolations ( i . e . isolation on a drain for a large vessel ) will contain between the two valves a spectacle blind or spacer, allowing positive isolation to be achieved once the Double Block and Bleed is closed.
How to say spectacle blind in Hindi and what is the meaning of spectacle blind in Hindi? spectacle blind Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
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