查询词典 shower nozzle

Weight versus nozzle performance trades typically re- duce the nozzle length to the 20 percent range.

重量银两喷嘴性能的行业，通常重新杜奇喷嘴长度，以20 ％的范围内。

Based on the theory of large eddy simulation and the method of VOF , the initial breakup process of fuel liquid jet, which eject from the nozzle exit at the time scale of micro-second level, is investigated. The mechanism of primary atomization is analyzed, and the initial breakup model of liquid jet is presented. By modeling and numerical simulation of atomization for a diesel nozzle under the given conditions, the initial umbrella-like spray shapes are obtained, which fits better with the experimental results. Meanwhile, the droplets secondary breakup process, such as leeward RT breakup, dumbbell-like breakup and droplets coalescence, etc. are exhibited visually.

基于大涡模拟LES理论和VOF方法，考察了燃油喷雾初始时刻即时间尺度为微秒级的液柱破碎过程，分析了初始破碎的机理，给出了该时间尺度下液柱初始破碎过程的模型；通过对一特定条件下的柴油机喷油器的建模和喷雾过程的大涡数值模拟，获得了液柱初始时刻"伞状头部"的喷雾形态，所得计算结果与相应的试验数据符合较好；数值模拟还直观地展现了液滴背风RT破碎、哑铃型破碎以及液滴的聚集融合等液滴的二次雾化过程。

When the last expansion wave in the series intersects the nozzle wall, the wall pressure begins to rise again due to the gradual turning caused by the nozzle contour.

当最后膨胀波在一系列相互交错喷嘴墙，该墙的压力，开始再次上升，由于逐步转向所造成的喷嘴轮廓。

As to the work about theory analysis, at first, the paper describes the atomizing and humidifying process of the centrifugal nozzle with firing pin type, high pressure and little aperture and liquid physical properties. Later, combining with the structure characters of this kind of nozzle, the paper studies on the theory of the atomizing and humidifying process by three phases, which is water film forming phase, water film falling into pieces phase, and heat and mass transfer between water and air phase in turn.

理论工作方面，首先描述了撞针型高压小孔径离心式喷嘴的雾化加湿过程和液体的物理性质，然后结合撞针型高压小孔径离心式喷嘴的结构特点，将其雾化加湿过程分三个阶段进行机理上的研究，这三个阶段依次为液膜形成、液膜初次破碎及二次雾化、水与空气的热湿交换。

The Liberty 20 Gallon Foamer includes a 12 metre discharge hose assembly with stainless steel ball valve and both a fan nozzle and a zero degree nozzle.

在自由20加仑发泡剂，包括一个不锈钢球阀，都一和零度喷嘴风扇喷嘴12米排放软管总成。

The influence of several parameters including injection rate of nozzle exit, the ratio of length between nozzle and inner gular tube, the ratio of length between gular tube and it's inner diameter and back pressure on the performance of gas solid injector is analyzed.

分析了喷嘴出口射流速度、喉嘴距、混合管段尺寸及背压等参数对气固喷射器性能的影响，结果表明：存在最佳的喷嘴出口射流速度、喉嘴距以及喉管长与其内径之比使得固气比达到最大值；而背压的增加则不利于提高喷射器性

The structure and parameters of the nozzle of a jet mill device are optimized, numerical simulations of the inner structure are carried out with hydrokinetics software, the stress analysis of the structure is conducted with finite element software, and the effects of inlet diameter, section area of throat region, passage shape and diffusion angle on supersonic nozzle are analyzed.

对气流粉碎装置的喷嘴结构和参数运用均匀设计法进行设计与优化，采用流体动力学软件对所设计喷嘴进行流场模拟，应用有限元分析软件对喷嘴内部结构受力情况进行分析，对喷嘴效果进行检验。

An analytical model was built up on the jet deflection in the crossflow by applying the theorem of momentum, which takes full account of mixing between the upstream fluid and burner jet, and of the total pressure difference between the two sides of the jets. Through analysis of this model, experimental study and numerical simulation, effects of the nozzle spacing ratio, width of the furnace corner, width of the nozzle and imaginary circle diameter on the aerodynamic field in the furnace were obtained.

本文综合考虑了炉内旋转气流与燃烧器射流的混合和燃烧器射流向火侧与背火侧的全压差等因素，应用动量定理建立了横向气流中射流偏转的分析模型，并结合冷态模化试验和数值模拟计算，得到了燃烧器间隙率、炉膛切角、喷口宽度和假想切圆直径等因素对炉内空气动力场影响的规律。

A new method preparing a dope used in laser quench is introduced. The design principles of spray nozzle and the feed system have been described. It is realized that intermixture dope being radical absorb light is automatically sprayed with the help of the spray nozzle designed based on the centrifugal principle.

研究了一种制备激光淬火吸光涂层的新方法，重点叙述了喷头和送料系统的设计原理，利用离心原理设计的喷头和涂料同步送给系统实现了水基混合物吸光涂料的自动涂敷，解决了涂料堵塞和沉淀的问题。

Its main features: the volume of adjustable water jet nozzle, in accordance with the needs of customers customized different nozzle; over-current components for stainless steel, if the material may also have other requirements; irrigator can also be fitted out fitted dark; reliable and useful .

它主要特点：喷嘴喷水量可调，根据客户的需要订制不同的喷嘴；过流部件为不锈钢材质，如果对材质有其它要求也可；冲洗器即可明装也可暗装；且实用可靠。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？