Thoughts turn first to some sort of global statistic, some indicator which would rate the wealth of nations in both economic and environmental terms and show a relationship between the two.
If flow rate is in excess of that specified, turnindicator knob towards closed position, noting pressure drop and valve setting and determining new flow rates from flow rate chart.
如果流量超过规定，将指示器旋钮旋转到关闭位置，注意压降和阀门设置，并从流量表中确定新的流量。
3
If flow rate is in excess of that specified, turnindicator towards closed position, noting pressure drop and valve setting and determining new flow rates from flow rate chart.