基本解释气门机构同根派生 valvetrain相关词英汉例句During deceleration, the IMA unit becomes a generator, while thecomputer operates the gasoline engine valvetrain to minimize enginebraking. 的单位成为一个发电机，而计算机的运行汽油发动机配气，尽量减少发动机制动。Electrohydraulic camless valvetrain 无凸轮电液驱动气门valvetrain更多例句