在上止点前打开进气门并在下止点增大气缸内的油气混合物之后关闭。

Opening the intake valve before TDC and closing it after BDC increase the fill of air-fuel mixture in the cylinder.

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在上止点前打开进气门并在下止点增大气缸内的油气混合物之后关闭。

Opening the intake valve before TDC and closing it after BDC increase the fill of air-fuel mixture in the cylinder.

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