两个引擎的转速都是每分钟2,500转。

Both engines were running at 2,500 rpm.

《柯林斯英汉双解大词典》

一台现代F1引擎的转速被限制在每分钟18000转，每秒需要消耗高达650升的空气，赛车燃油的消耗大约在每百千米75升（4mpg）左右。

Revving to a limited 18,000 RPM, a modern Formula One engine will consume a phenomenal 450 litres of air every second, with race fuel consumption typically around the 75 l/100 km (4 mpg) mark.

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此框是需要适应RW光碟引擎每分钟转速的速度和信号向莱康明发动机转速和磁的信号。

Thiss box is needed to adapt the RW engine RPM speed and signal to the Lycoming engine RPM and magneto's signal.

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