" I also understand that India has now banned the two-stroke gas engine."

“我也理解印度现在禁止二冲程燃气。”

An opposed-piston engine is a two-stroke engine with separate oil flow.

一台对置活塞就单独油流量的二冲程。

There's four stroke motors, four stroke piston engines being the most common.

有四冲程电，四冲程活塞最常见的。

On the flip side, diesel engines are bulky, and typically consist of longer piston strokes, so they can't reach high RPMs without incurring a lot of mechanical strain.

另一方面，柴油体积庞大，通常由长的活塞冲程组成，因此它们无法在不产生很大械应变的情况下达到高转速。

In 1885, Ford was tasked with fixing an Otto engine, a large stationary single-cylinder internal combustion four-stroke engine designed by German Nikolaus Otto.

1885 年，福特的任务修理奥托，这一种由德国人尼古拉·奥托设计的大型固定式单缸内燃四冲程。

If you make the stroke of the crankshaft longer, you'll get more torque.

如果你延长曲轴的冲程，你会得到多的扭矩。

The overall lighter architecture of gasoline engines, and the shorter bore-and-stroke combination, allow for greater power output and the capability to reach higher revolutions per minute (RPMs) .

汽油的整体轻，内径和冲程组合短，允许大的功率输出和达到每分钟高转数（RPM）的能力。

So going back to the four strokes of the motor, the piston is forced down, as the piston is forced down, it's forced down on a crank shaft.

说回到四冲程电，活塞被向下推，当活塞被向下推时，它被压在曲轴上。

The first stoke being the intake stroke.

第一个冲程进气冲程。

So let's talk about the four strokes of the motor.

所以让我们来谈谈四冲程电。

Diesel requires heat and pressure, same concept, same four strokes, but the piston comes up, it's compressing the diesel and the air, but much higher pressure than a gasoline motor.

柴油需要热量和压力，相同的概念，相同的四冲程，但活塞上来，它会压缩柴油和空气，但压力比汽油高得多。

This part of the cycle is named the power stroke.

这一部分循环被称为力冲程。

The Trabant had a 25 hp two-stroke engine closer to what's in a lawnmower than a car, a plastic body, no fuel door, no rear seatbelts, not even a turn signal indicator.

特拉贝特汽车配备了一台马力仅25匹的双冲程， 其力接近割草而非汽车水平，车身采用塑料材质， 未设油箱门， 后排安全带缺失，甚至连转向灯指示器都未配备。

On the other hand, the lawn equipment has no catalytic converters. And you use gasoline, you use two stroke oil, you mix it up, and it's a toxic combination.

另一方面，草坪设备没有催化转换器。而且你使用汽油，使用两冲程油，将它们混合，这就成了有毒的组合。

The intake stroke, piston goes down.

进气冲程活塞下降。

If you make the stroke of the crankshaft shorter, you're going to lose torque, but you'll be able to gain RPM.

如果你缩短曲轴的冲程，你就会失去扭矩，但你将能够获得RPM。

What is the sequence of the four strokes?

四个冲程的顺序什么？

So in this engine, if you increase the pressure, then you'll have more force on the piston to use during the power stroke.

因此，在这种中， 若提高压力，则在力冲程期间， 活塞上将产生大的力以供利用。

Over time, the wing beat that helps them scramble becomes the power stroke that helps them fly.

随着时间的推移，帮助它们攀爬的翅膀拍打变成了帮助它们飞行的力冲程。

Four-stroke engine has an enough overlap between inlet valve opening and exhaust valve closing.

四冲程的进气门开启与排气门关闭之间有足够的重叠。