The generating process of piston knock noise is thoroughly analyzed by the study of piston motion state and knock process with the engine at the rated engine speed.

进一步分析了发动机额定转速下，活塞的运动姿态和敲击过程，揭示出活塞敲击噪声的产生过程。

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Thee A29 Clan was to be propelled by a Rolls-Royce Meteor engine, up-rated to 700 bhp, which would give the Clan a top speed of 30 mph (48.3 kph) and power to weight ratio of 13.82 hp/tons.

在A29家族是由劳斯莱斯流星引擎推动，最高额定为700马力，这会给家族30英里每小时（48.3公里）和动力的最高时速与重量13.82马力/吨的比例。

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The new engine is rated at 300 HP at 5800 RPM and 300 lb-ft of torque.

新发动机的额定电压为300马力，在5800转和300磅英尺的扭矩。

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Downey is a commercial multi-engine rated pilot.

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Although heaters are minimized to conserve battery range, Consumer Reports rated a Volt test car at a paltry average 25 miles of electric-only running before the gasoline engine kicked in under cold Connecticut winter conditions.

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