You just turn on the gas, hit the electric starter.

打开气阀 点火。

Yeah, you've coked up the inlet valves and the plugs.

你把进气阀和火花塞憋住了。

A good joke can function as a release valve for the whole body.

一个好的笑话有作为全身放气阀的功能。

Like these air pistons he uses to launch food or these catapults.

就像这个他射食物的气阀活塞，或是这些弹射。

Then the intake valve closes, and an exhaust valve opens.

然后进气阀关闭，打开 排气阀。

Then, an intake valve opens, allowing the steam into the engine.

然后，进气阀打开，让 蒸汽进入动机。

The exhaust valve leads to a condenser, which cools the steam back into water.

排气阀通向， 蒸汽却并返回水中。

Last step, exhaust valve opens, piston travels up, it forces that spent burnt gases out your exhaust pipe, out into the atmosphere.

最后一步，排气阀打开，活塞向上移动，它迫使燃烧过的气体从排气管向下进入大气。

The U.S. space agency says it encountered an issue with a panel on the mobile launcher that controls the core stage vent valve.

美国航天局表示，移动射装置上控制核心级排气阀的面板出现了问题。

The fresh water is circulated through the engine to cool the cylinder jackets, cylinder heads, exhaust valves and turbo-blowers.

新鲜水在动机内循环，于却气缸套、气缸盖、排气阀和涡轮增压。

Some of the blaze powder had fused to the sides of the intake valve, but it didn't seem completely clogged.

一些烈焰粉已经融合到进气阀的两侧，但似乎并没有完全堵塞。

Then, an intake valve opens, allowing the steam into the engine. The steam expands and moves a piston outward – that’s the work done by the engine.

然后，进气阀打开，让蒸汽进入动机。蒸汽膨胀并向外移动活塞——这就是动机所做的功。

This is even more likely to happen if the intake valve is only partially open, because there’s less room for the steam to enter and the water to escape at the same time.

如果进气阀仅部分打开， 则更有可能生这种情况，因为蒸汽进入和水同时逸出的空间较小。