单选题 1分

In a common sea water cooling system, from the sea suction one of a pair of sea water circulating pu...

In a common sea water cooling system, from the sea suction one of a pair of sea water circulating pumps provides sea water which circulates the lubricating oil cooler, the jacket water cooler and the piston water cooler before _____.
  • A. cooling
  • B. heating
  • C. sucking
  • D. discharging overboard

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