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Which of the following conditions will tend to increase the ignition delay period of combustion in a compression ignition engine? (236347:第1章船舶主推进装置:903)

A Using a fuel oil with a higher cetane number.

B Decreasing the air charge temperature.

C Reducing the injected fuel oil droplet size.

D Increasing the compression ratio.

正确答案:A (备注:此答案有误)

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