{HEAD ~ The circulating pump} 72 is crucial to the operation of the heat exchanger 10, as without {TAIL ~ the pump} 72 forcing liquid through the shell 12, only convection would force the liquid through the shell 12 and flow would be substantially stagnant 
{ HEAD ~ The circulating pump } 72 is crucial to the operation of the heat exchanger 10 , as without { TAIL ~ the pump } 72 forcing liquid through the shell 12 , only convection would force the liquid through the shell 12 and flow would be substantially stagnant
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