查询词典 droplet

Air-assisted electrostatic spraying technology is a spray technology which integrated the advantages of air-assisted hydraulic spraying technology and electrostatic spraying technology. It not only atomize the droplet again, but also reduce the droplet drift, increase the deposition and adhesion performance of pesticide in the plant leaves. It can increase the efficiency of chemical using, reduce the pesticide"s waste and environment pollution, make the full use of resource and reduce the cost of production. It can also increase the agriculture sustainable development and reduce the chemical"s threat to the environment.

风送式静电喷雾技术是综合风送式液力喷雾技术与静电喷雾技术优点的一种喷雾技术，它不仅可以二次雾化雾滴，还可以减少雾滴漂移，增加农药在植株叶片上的沉积和附着性能，这对提高农药的利用率，减少药液的浪费和环境污染，使资源得到更合理的利用和降低生产成本，减少化学农药对环境的破坏等具有重要的意义。

It examined the effect of carbonates for bead shape and droplet size by automatic welding and droplet collection method, separately.

分别以自动焊接与熔滴收集法探讨焊道形状与熔滴尺寸的影响。

The cooling process involves complex droplet evaporation, strong convective heat and mass transfer, therefore a deep understanding of spray characteristics is essential to optimize the nozzle design and improve the cooling efficiency of the spray. This paper presents a theoretical model to describe the equilibrium evaporation process of a single droplet in cryogen spray.

为了深入了解制冷剂喷雾特性以提高冷却效率、优化喷嘴设计，利用质量传递数法推导传质方程，通过选取合适的阻力系数经验关联式建立了动量方程，考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程，初步建立了单个制冷剂液滴平衡蒸发阶段蒸发冷却理论模型。

The droplet combustion model and numerical method have been established and droplet combustion process has been calculated by using it.

建立了燃料液滴在高温高压空气中燃烧过程的计算模型和数值方法。

In the electromagnetic field that countercurrent inductor produces, the metal droplet that melts gets the role suspension of electromagnetism force in quartz pipe center and had been heated up continuously. When metal droplet of melting have been heated up certain temperature surface beginning gasification, metal vapor tension will raise follow temperature go up, is heated continuously can have plenty of metal atoms overflow metal ball liquid surface, at the same time, as the inert gas of cooling medium, all along with certain current velocity, sideswipe the metal droplet surface that melts. Metal atoms fly out liquid surface according to certain way form the atom cluster by the condensing of inert air current, merger and the collision between crystal nucleus pellet and atom cluster form the smoke flame of nanoparticle pellet eventually.

在逆流感应器产生的电磁场中熔化的金属液滴受电磁力的作用悬浮于石英管中央并继续被加热，当金属熔球被加热到一定温度时表面开始气化，金属蒸气压随温度的升高而升高，继续受热会有大量的金属原子飞出熔球液面，与此同时，作为冷却介质的惰性气体始终以一定的流速掠过熔化的金属液滴表面，原子飞出液面受冷后就按照一定的方式凝聚成原子簇，在惰性气流中形核并随之长大，颗粒、原子簇间的碰撞与合并，最终形成金属纳米颗粒的烟焰。

By analyzing the force on a single droplet, the function of droplet velocity with time was obtained, and calculation results showed that the droplet velocity had a quick decent, and dropped to its terminal velocity in 0.6 s.

对单液滴进行受力分析，推导出了液滴运动速度与时间的关系式，并针对CO2-H2O体系计算了不同液体雾化压力下液滴速度的变化，结果表明，液滴速度衰减很快，在0.6 s内液滴趋近其终端速度。

An on-line measurement system based on machine vision is developed to measure the droplet diameter,the deflection distance of charged droplet and the jet velocity in uniform droplet spray forming process.

为了在均匀液滴喷射成形中实现对微熔滴直径、喷射速度及偏转距离的在线检测，提出了基于机器视觉的微熔滴关键参数在线检测方法。

Through image digitalization and digital image frame analysis, the dynamic change of arc state and droplet motion before and after its detachment from wire tip can be quantitively described. The kinematical and kinetical parameters of droplet motion can be solved. The development of the system provides a new way for the study of metal transfer mechanisms and the interaction between droplet transfer and weld pool.

该系统通过对高速摄影图象的数字化处理及时间图象序列分析，可以对熔滴过渡过程中电弧变化的动态过程及熔滴脱落前后的运动过程进行定量分析，并可提取出熔滴运动的各种运动学和动力学参数，为进一步的熔滴过渡机理及熔滴与熔池相互作用的研究提供了新的研究手段。

The research stated above show that, arc spectrum signal can not only represent the process of droplet transfer, measure the frequency of droplet transfer, but also it has particular time field and frequency field characteristics and corresponding waveform modes for every kind of droplet transfer modes.

上述研究发现，电弧光谱信号不仅可以清晰地反映熔滴过渡的过程，测量熔滴过渡的频率，而且对应每种熔滴过渡形式，光谱信号都有独特的时域和频域特征以及波形模式。

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。

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。