单选题 1分

Fuel injector nozzles are usually of the multi-orifice type with the number and placement of the hol...

Fuel injector nozzles are usually of the multi-orifice type with the number and placement of the holes arranged according to the ______.
  • A. type of piston rings
  • B. pressure of the fuel system
  • C. size of the pump plunger spring
  • D. design of the combustion chamber

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