The chemically inert MetraFlow flowmeter from Titan Enterprises uses patented transit-time ultrasonic technology to measure challenging liquids flowing through a Perfluoroalkoxy (PFA) tube able to withstand the long-term transfer of aggressive chemicals. In addition, the MetraFlow was engineered to non-invasively measure a flow rate of 20 ml/min, offering an outstanding accuracy of ± 1% of reading.
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英國鐵路公司如何推動凈零排放
It would be better if the trains had good coverage of the country. Large areas have no easy connection and so cars (or buses?) and lorries are still...