查询词典 spray can

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

The results show that the microstructures of these three kinds of coating are different from those of the matrix (20 steel). The wear resistance of the flame spray coating is 4. 9 times that of the matrix. This is caused by the existance of hard noncrystal microparticals. The wear resistance of the coating by flame spray welding is 6. 3 times that of the matrix. The reason is that the fine crystal grains can be formed and the solution strengthening, dispersion hardening can be induced by these alloy elements. The resistance of the laser remelt coating is 8. 8 times that of the matrix. This is due to the solution strengthening, dispersion hardening and the existence of very hard dendritic crystal, eutectic and martensite in the microstructure.

作者指出，喷涂层由于层内有一定数量高硬度的合金非晶质点存在，其耐磨性是钢基体的4.9倍；喷熔层内合金晶化产生的晶粒细小，合金元素能起固溶强化作用，也能生成化合物产生弥散硬化作用，故此耐磨性是钢基体的6.3倍；激光涂敷层除所含合金元素产生的固溶强化和弥散硬化作用外，表层组织为高硬度的枝晶+共晶和马氏体，故其耐磨性是钢基体的8.8倍。

In addition, the original sizes of the worn components can be restored by means of thermal spray. The feedstock wires perform the function of self-consuming electrodes and compressed air is propelling gas in the electric arc spray.

可以对材料表面性能（如耐磨性、耐腐蚀性、耐高温隔热性等）进行强化或再生，起到保护作用，并能对因磨损、腐蚀或加工超差引起的零件尺寸减小进行恢复。

Smog、toxicant and dust affect God's image health in the course of the spray-paint, to all do harm to the human body to is some to spray-paint the part person very difficult proceeding operation or the root can't operate, base on upper reason that internal factory is a impendence thing that require to use spray-paint robot for replacing man to joining work.

在喷漆操作中产生的烟雾、有毒气体和灰尘等对人体的健康有影响，另一个原因是有些喷漆部位人很难进行操作或者根本不能操作，基于上述的原因国内的厂家迫切需要用喷漆机器人代替人进行喷漆作业。

No sprinkling can, I can hand pick what to spray water, just like the spray toner.

没有喷壶的话，可用手接一下自来水来喷，就像喷爽肤水一样。

Powder flame spray or spray fusing gun can be used with inert gas to feed powder with best coating effects,and can also be used for spary of ceramic powder.

粉末火焰喷涂喷焊设备。用惰性气体送粉，能得到更佳涂层品质，也可喷涂氧化物涂层。你知道它的英文吗？· n。金属线，电线；电报，电信 v。发电报给

Generally speaking, you should spray from 20cm away that the scope of the spray is big and homogeneous . If you can't spray homogeneous ly , the perfume will be volatilized and wasted.

一般来说，你在喷香水的时候，要距离你的皮肤20厘米，这样喷的范围大而且均匀，香水如果喷得不均匀的话，很容易挥发造成浪费。

The traditional arc spray gun can only spray same material, but the arc spraying and flame spraying can be synchronously completed by use of the new device.

基于针对电弧喷涂应用的局限性，设计了一种能有效结合电弧喷涂和火焰喷涂优点的复合式电弧喷涂枪。

Results of experiments under different conditions show that, compared with arc electrical signal and arc light signal, arc spectrum signal is of more advantageous property. It can not only detect short-circuit metal transfer, but also more effectively detect droplet in free transfer mode than electrical signal. It can not only detect the droplet transfer in the CO〓 welding, but also can detect spray transfer in Ar welding with advantage over arc light signal. Especially, its outstanding capability of detecting steam spray transfer where other approaches fail, shows that are spectrum information has the utmost signal quality in metal droplet transfer detecting.

多种工艺条件下的对比实验表明，与电弧电信号及光强信号相比，电弧光谱信号具有更为优越的信号品质，其不仅可以检测熔滴短路过渡而且优于电信号可以有效地检测自由过渡；不仅可以检测活性气体保护条件下的熔滴过渡，而且优于光强信号可以检测惰性气体保护条件下的喷射过渡，特别是其可以实现熔滴射流过渡的检测，解决了这一用其它信号无法克服的难题，体现出电弧光谱信息在熔滴过渡研究中所独具的优越性。

300Ml /320ml Natural Spray Air Freshener is special designed for automatic dispenser.It can spray the fragrance according to your need by timing and ration. It can be used at any place where needs to eliminate the stinky smell and keep freshing at all time. Especial for toilet, smoking area etc.

300ml或320ml定量喷雾罐，是专门为定量喷雾芳香机而设计，它能根据需要定时、定量喷出香味，适合公共场所，尤其卫生间、吸烟区等场所使用。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。