The throttle valve 112 is arranged in fluid series with the fuel metering valve 110 and {TAIL ~ the centrifugal pump} 114 to regulate {HEAD ~ pressure drop} across the fuel metering valve 110 
The throttle valve 112 is arranged in fluid series with the fuel metering valve 110 and { TAIL ~ the centrifugal pump } 114 to regulate { HEAD ~ pressure drop } across the fuel metering valve 110
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