Early exhaust valve closing ( EVC ) timings result in high residual fractions in the cylinder, decreasing air mass in cylinder per cycle, increasing combustion duration, and decreasing IMEP while the pumping loss is decreased.是什么意思_Early exhaust valve closing ( EVC ) timings result in high residual fractions in the cylinder, decreasing air mass in cylinder per cycle, increasing combustion duration, and decreasing IMEP while the pumping loss is decreased.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句