Which of the following procedures should be carried out to permit the use of a crosshead engine with an inoperable after-cooler?（）<br>A:Bypass the after-cooler to operate at speed<br>B:Run at reduced speed until the cooler can be repaired or renewed<br>C:Switch to diesel fuel and run at full speed<br>D:Nothing need to be done due to the low heating value of heavy fuel

Which of the following procedures should be carried out to permit the use of a crosshead engine with an inoperable after-cooler?（）
A:Bypass the after-cooler to operate at speed
B:Run at reduced speed until the cooler can be repaired or renewed
C:Switch to diesel fuel and run at full speed
D:Nothing need to be done due to the low heating value of heavy fuel

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