内燃机模式的工作原理与普通四冲程内燃机相同，因此不可避免的也会产生有害排放物。
The operating principle of internal-combustion engine mode is similar to the four-stroke internal combustion engine, so it will inevitably produce harmful emissions.
奥托制造了第一台实用的四冲程内燃机，叫做“奥托循环发动机”，并且当完成制造他的发动机后他就把发动机安装在摩托车上。
Otto built the practical four-stroke internal combustion engine called the "Otto Cycle Engine, " and as soon as he had completed his engine, he built it into a motorcycle.
采用复数法，在不考虑摩擦力的情况下建立了单缸四冲程内燃机的力分析数学模型，确定了计算框图，并编制了专用的计算机程序。
A calculation method for force analysis of the internal combustion engine with four strokes was established, and a flow chart was presented.
采用复数法，在不考虑摩擦力的情况下建立了单缸四冲程内燃机的力分析数学模型，确定了计算框图，并编制了专用的计算机程序。
A calculation method for force analysis of the internal combustion engine with four strokes was established, and a flow chart was presented.
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