查询词典 air compression

It is assumed that it is adiabatic compression during start-up process before the atmophere pressure in flow passage rise to relief pressure, the thermodynamic equation, momentum equation and rigid water hammer theroy have been applied for the analysis and calculation the variation law of air during this transient process.

假设流道内气体未达虹吸驼峰顶处真空破坏阀排气压力前的起动过渡过程处于绝热压缩状态，运用能量方程结合动量方程和刚性水击理论，计算分析出了流道中的气体压力在起动过渡过程中的变化规律。

An exhaust port (20) allows dried air out of the compression chamber.

一排气口（ 20 ）让干燥空气的压缩会议厅。

The term "airwave" comes from the fact that human speech, in its native form, is an acoustic means of communications which makes use of the physical matter in the air to conduct compression waves.

术语"airwave"来自人的话音，其本来的形式是一种声学通信方法，利用空气中的物理介质传输压缩波。

While other volunteers at his place sort plastic goods for recycling, he takes a bagful, perforates it to allow air flow for the process of compression and places it into the compressing machine.

收了满满一车的塑胶物品回到家里，就有志工会帮忙把各种塑胶做分类，李盛友将一大袋分好的塑胶，用剪刀戳出一个一个气孔，再放进机器里作压实的工作。

In. (1200 cc) Compression Ratio 9.7:1 Fuel System3 Electronic Sequential Port Fuel Injection Air Cleaner Paper cartridge type Lubrication System Dry-sump

cc 压缩比9.7：1 燃料System3 电子连续港燃料射入空气滤清器纸弹药筒类型润滑系统干燥废油坑三倍圆盘闸高登上车头表中间登上脚控制银， 13 讲了铸铝轮子宽被擦亮的把手

As far as the relationships between brightness, chromatism and recovery are concerned, there is little difference between heat treatment in air and heat treatment in vacuum. The fixation degree of compression set is closely related to the change degree of color.

2就热处理过程中杉木试材的明度、色差与回复率之间的关系而言，两种热处理方式之间的差异不大；热处理中木材变定的固定程度与木材颜色的变化程度有关。

With the help of this model, the influence of engines capability by some parameters such as compression ratio、coefficient of excess air and ignition timing can be estimated, and the influence factor was analyzed in this paper.

本文利用该模型预测了压缩比、过量空气系数、点火提前角等参数对发动机性能的影响并分析了这些参数对发动机性能产生影响的原因。

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 paper described such a comprehensive model based on a great number of documents, which takes into consideration details including air entrainment of fuel liquid zones, unsteady heat transfer during droplet evaporation, difference between premixed and entrain dominant combustion rate, compression factor of actual gas in cylinder pressure calculation and minimization of free energy during chemical equilibrium.

摘 要：对增压直喷柴油机的缸内空气卷吸、瞬态燃油液滴蒸发、燃烧过程的分段特征、化学反应平衡的最小自由能机理、实际气体性质修正、燃烧排放物生成等进行了分析，结合缸外的喷油过程仿真及进排气过程的容积法，建立了一个综合的研究性能及排放的准维多区模型，并进行了两个机型多个工况的实机试验比较。

"If the engine is turned over too slowly, the unavoidable small leaks past the piston rings and also through the intake and exhaust valves of four-cycle engines will permit a substantial part of the fuel-air mixture to escape during the compression stroke."

如果发动机转速太慢，四行程发动机的活塞环和进排气门就不可避免地有泄漏现象，这会使大量的可燃混合气在压缩行程期间泄漏掉。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。