| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-metering system for maintaining metering accuracy for various type metering ranges, and reducing facility initial cost to a low value in metering liquids. SOLUTION: In a system for metering the liquid, an air suction port is installed in the piping of a liquid metering line. Thus, siphon effect generated at a metering time is eliminated for improving metering accuracy at low initial cost.
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