查询词典 variable compression ratio

Based on the quasi-dimension combustion model, the emission model is set up in this dissertation. The NO emissions in different conditions of LPG engine can be simulated and calculated by the model. The calculated results show that the NO emissions are larger influenced by ignition timing and less influenced by compression ratio, finally, choosing a right coefficient of excess air will have great effect to reduce NO emissions.

本文在建立的准维燃烧模型基础上建立了排放生成模型，利用该模型对液化石油气发动机在变参数情况下NO的排放生成情况进行了模拟计算，计算结果表明点火提前角对NO的生成影响较大，压缩比对NO的生成影响较小，而选择合适的过量空气系数更是对降低NO的生成起着关键作用。

This enables the use of a higher compression ratio in the combustion chamber, which improves the engine's power and efficiency.

这使得使用高压缩比的燃烧室，提高了发动机的功率和效率。

JPEG2000 is a new image compressing standard, it has the characteristic of high compression ratio and low distortion.

JPEG2000是一种新的图像压缩标准，具有高压缩率、低失真度和灵活高效的特点。

Improving compression ratio is my work in future.

提高压缩比将是以后的工作之一。

With a higher compression ratio, and allows for more power density.

具有较高的压缩比和密度允许更多的权力。

This is why it is better to run less static compression ratio and more boost to produce more power.

这就是为何较少的静态压缩比以及提高增压是较好的提高马力的方式。

Experimental results show that 40.2% compression ratio can be achieved on average.

实验结果显示，在新的序列排列方法下可以达到42%的压缩率。

It is natural that we always want the greatest possible compression ratio.

我们总是很自然地希望得到尽可能大的压缩比。

This mean that 11 bits are used instead of 48, a compression ratio of 4 to 1 for this particular file.

这意味著， 11位是用来代替48 ，压缩比为4比1这一具体文件。

If all the repeat, then the compression ratio is 2 to the end of a few.

如果全部重复，那么它的压缩率是以2为底的对数。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。