查询词典 velocity stages

The results are listed as following :㏕he best anti-erosion proportion of resin present is 25wt% in the condition of silicon carbide reinforced SMCC, while the alumina reinforced SMCC is 40wt%.(2) The better anti-erosion results was achieved with the ratio of silicone resin to acrylic resin containing hydroxy being 3: 1.㏕he composites coating tends to be more brittle when added in alundum particles. It also means that the maximum erosion peak of alundum reinforced SMCC tends to normal angle.甌he change of erosion rate of SMCC can be divided into two stages with the increment erodent velocity: the slow erosion stage of the beginning and the stable erosion stage.

首次发现：①SiC增强的复合涂料涂层，树脂含量为25wt％时，具有最佳耐冲蚀性能：Al_2O_3增强的复合涂料涂层，树脂含量为40wt％时，具有最佳耐冲蚀性能；②SiC增强的涂料，有机硅树脂与丙烯酸树脂的比例为3：1时的耐冲蚀性能好于1：1的复合涂料涂层；③Al_2O_3增强体使涂层变脆的倾向大于以SiC为增强体的涂层，即SiC增强的复合涂料涂层的最大冲蚀率出现在30°，Al_2O_3增强的复合涂料涂层的最大冲蚀率出现在75°～90°之间；④低速冲蚀磨损机理主要是弹性变形与疲劳；高速冲蚀磨损机理主要是显微切削和显微犁耕。

It is difficult to measure the static friction coefficient of the material like polyurethane. The state of friction under very low velocity with small sliding distance is a special state between static and dynamic friction. This state of friction can be called initial stages'friction.

聚氨酯弹性体材料的静摩擦系数是比较难以确定的，本文建议把滑动量较小而滑动速度又很低的这一时期的摩擦称为"初期摩擦"，它是界于静摩擦与动摩擦之间的一种特殊的摩擦状态。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

This paper provides analyses and discussion of ice jam stages with variation in ice discharge and initial flow depth and velocity in straight and curved channels based on the data from the experiment and the field observations at the Hequ gauge station of the Yellow River.

依据实验室资料和黄河河曲段的实测资料，针对直道和弯槽，对比分析了不同冰流量、不同初始水深和流速时模拟冰塞和天然河道冰期水位的变化规律。

The results show that the discharge and cooling stages of sparkjet were simulated by computational method. The instance energy input can produce the condition of high pressure and temperature in the actuator, which induce the forming of synthetic jet. With the increment of the input energy, the velocity of the synthetic jet could be increased to the supersonic state. Under the periodic energy input, the distribution of the sparkjet velocity on the nozzle is non-sinusoidal. And the discharge velocity of jet is much larger than the suction velocity of the flow from environment.

计算结果表明：采用本文的计算方法可以模拟出火花型激励器喷射、吸入的工作阶段；电火花瞬间能量的输入产生了腔体内的高温、高压环境，从而诱发合成射流的形成；当激励能量增加，激励器产生的合成射流速度增加，可达到超声速状态；周期性激励下，火花型合成喷喷口处的轴向平均速度随时间不是正弦分布，且喷射过程的最大速度要远远大于吸收过程的最大速度。

In this paper,the characteristics of slug velocity during the four stages of severe slugging in the pipeline-riser system were studied.

本文对上升管系统中严重段塞流四个阶段的液塞速度特性进行了深入地研究。

Furthermore, the factors affecting cutting qualities and efficiency and The research result included: firstly, matching of the tractor"s moving velocity and the cutting velocity, the degree of tightness of the cutter chain, the height of stubble, the opening of the cutting protector and the interval between two adjoining blades, the matching of configuration parameters of blades are the main factors affecting the cutting quality and efficiency; secondly, the cutter"s dynamically cutting of the arundo donaxl includes three stages: touching, cutting-in and cutting-off; thirdly, the movement tracks of stalks of Arundo Donaxl, which are cutted off has been acquired.

试验研究得到以下结论：(1)机组前进速度与切割速度的匹配、链条的张紧度、割茬的高低、护刃器的开合度及相邻动切割刀片的间距以及刀片结构参数的匹配是影响芦竹切割质量和切割效率的主要因素；(2)切割器对芦竹的动态切割过程包括接触、切入和切断三个显著不同的阶段，各阶段存在不同的切割特征；(3)得出了切割过程中被切断作物茎秆的运动轨迹曲线。

The velocity of the nonexchangeable potassium release from the soil tested is different at different stages of time.The velocity of the nonexchangeable potassium release is more highly marked in 0～72 hours than in 72～912 hours.

非交换钾释放是粘土矿物层间钾缓慢扩散进入液相的过程，释放速率决定着土壤供钾能力，非交换钾释放动力学性质在土壤供钾能力评价中有着更为重要的作用。

Having in view the lozenge arrangement of demisters and diversely shaped plates , the pressure drop and flow velocity in demisters were measured during many tests , while the demisting efficiency and the concentration of liquid droplets were calculated by the liquid balance method the effect of flow velocity and that of plate pitch on demisting efficiency as well as the influence of the number of demister stages on both the efficiency and pressure drop have been analyzed , herewith providing some referential .

针对除雾器的菱形布置方式和叶片的不同几何形状，通过大量实验测定了除雾器的压力降和速度，利用水平衡法计算了除雾效率和液滴浓度，分析了除雾器气流速度，叶片间距对除雾效率的影响及除雾器级数对除雾效率和压力降的影响，为该型除雾器的设计和制造提供了参考依据。

By analyzing the collapsing velocity,the bed collapse process can be clearly divided into two stages:a rapid initial sedimentation stage with constant velocity,and a decelerating stage of solids consolidation for the incompletely supended agglomerates.

实验证明，这种颗粒的床层塌落行为明显不同于普通的GeldartA类与C类颗粒，其塌落过程可分为恒速沉降阶段和减速压实阶段。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。