... period of exhaust 排气时间 period of intake 进气时间 period of oscillation 振动周期 ...
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进气和排气的气门开合时间随着转速的提高相互交叠，循环着将废气排出。
The intake and exhaust valve opening times will overlap as RPMs rise, recycling some of the charge the outgoing air creates.
进气系统有电加热器和温度控制进气阀，可以确保汽车顺利启动和缩短暖机时间。
Intake system has electric heaters and temperature control the intake valve, you can ensure that a smooth start and shorten the warm-up time.
得出了进气预热在电控柴油机起动过程中对转速、起动时间、HC排放的影响规律。
Influence rules of air intake preheating on revolution speed, starting time and HC emission in the starting process of electronic controlled diesel engine were acquired.
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