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A typical application would be one in which a tank holds oil and water, but you're only concerned with the water level. The specific gravity of the oil is between 0.8 and 0.9 and that of water is 1.0.
SINGAPORE — In a sign of how poorly SMRT maintained its anti-flooding system, investigations revealed the rainfall on Oct 7 would have filled only 13 per cent of the stormwater pit under the ...