Coasting is especially useful if you're driving on country highways and straight roads, where you don't need to floor the accelerator and feed fuel into your engine.

如果你行驶在乡村公路和笔直的道路上，滑行尤其有用，你不用把油门踩到底，也不用给引擎供油。

youdao

Unlike the better balanced straight-six or even the ultra-smooth V-12 engine, the humble four-cylinder generates an up and down vibration with a frequency of twice the crankshaft's rotational speed.

不像运行起来比它更稳定的直列六缸引擎或者极其流畅的V - 12引擎，卑微的四缸引擎会以一种比自身机轴转速高两倍的频率产生一上一下的振动。

youdao

Restriction of wobble-plate engine is given as bevel gear, straight groove, elastomeric straight groove or 8-shape groove mechanism.

摆盘发动机的约束机构主要有圆锥齿轮、直导槽、弹性直导槽和“8”字槽等几种形式。

youdao

Margins increased from 1.4% at the start of the decade to a peak of 9.4% as the global economy marched straight up through 2006 on the back of the Chinese growth engine fueled by a credit-obsessed American consumer.

FORBES: Who Is Buying All Of These Cummins Engines?

And yet the engine, that growling, fierce-sounding engine, is actually a veteran 4.2-litre straight-six from Jaguar.

BBC: Trick of the light: A California road trip

As the aircraft ran out of altitude and options, gliding with a broken windshield and no engine power, the crew made visual contact with the ground and spotted a straight section of a rural highway below.

FORBES: Could You Land A Large Plane On An Interstate Highway?