Seal coating sprayed is currently used to adjust the gap between the blade tip and engine casing and improve engine efficiency.

采用喷涂封严涂层的方法调整叶片端部与发动机涡轮机壳之间的间隙以提高发动机效率。

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In order to improve engine efficiency and torque as well as the engine performance, plastic intake manifold was developed for CA4GE engine.

为了提高发动机的效率和扭矩、改善发动机的性能，针对CA4GE发动机研究、设计、开发了发动机塑料进气歧管。

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The rest of the heat may be allowed to escape, or, for maximum engine efficiency, the steam may be condensed in a separate apparatus, a condenser, at comparatively low temperature and pressure.

剩余的热可以排放，或者蒸汽可在单独的冷凝器中于较低的温度和压力下冷凝，以便获得最大的蒸汽机效率。

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So what this says is the efficiency of any reversible engine T1 has to be one minus T2 over T1.

这就是说,任何可逆热机的效率都是,负T2除以。

麻省理工公开课 - 热力学与动力学课程节选

So now let's look at the efficiency of our irreversible engine.

再来看看,不可逆热机的效率。

麻省理工公开课 - 热力学与动力学课程节选

We've formulated one particular kind of engine, and seen how we can analyze what it does, come up with relations that seem of value for efficiency and other quantities.

这是一个很典型的热机，我们来分析它是怎么工作的，然后得到效率和其它一些,有用物理量之间的关系。

麻省理工公开课 - 热力学与动力学课程节选

Contributing factors in the VOC decline cited by the NOAA include catalytic converters, improved engine efficiency, and reformatted fuels that are less prove to evaporation.

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Excluding the engine, where efficiency will reach Italian levels only when a new engine plant is opened, it takes around 21 man-hours to build a Palio in Betim, or about two hours more than it would at Melfi, the firm's most modern Italian plant.

ECONOMIST: A car is born

Scuderi says its split-cycle engine increases overall efficiency by up to 50 percent and cuts down on NOx gases at the same time by changing the way air gets channeled through an engine.

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