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   different velocities 的翻译结果: 查询用时:0.01秒
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different velocities
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  不同速度
     The results show that the algorithm can accurately and validly detect different objects with different velocities in static background.
     实验结果表明在静止背景的图像序列中,该方法比传统方法能更好地检测出以不同速度运动的目标.
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     In order to inspect the actual dynamic responses of a bridge structure,dynamic loading tests were carried out on the Songtoujiang bridge,a railway continuous beam bridge with a main span of 100 m and a pier of 99 m in high. The natural vibration and dynamic responses of this bridge structure were tested respectively under the conditions that a train passes by and brakes on the bridge at different velocities.
     为检验桥跨结构的实际动力性能,对主跨100 m,墩高99 m的松头江连续梁铁路桥进行了全桥动力试验,测试其自振特性以及列车以不同速度通过桥跨和在桥上制动时桥跨结构的动力响应.
短句来源
     Reaction at two different velocities was computed and the concentration distributing is given.
     计算了两种不同速度下的反应结果,给出各物质的浓度分布并进行分析,
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     The process of the train through the bridge at three different velocities of 90km/h, 120km/h, 160km/h are simulated separately in two different girder material. Middle-span deflection time response graph of five spans and the time history response stress graph of the top and bottom flange in the middle-span section are given.
     桥梁主梁在两种不同材料的情况下分别模拟列车以90km/h,120km/h,160km/h三种不同速度通过全桥的情况,分别得出桥梁五跨跨中的挠度,以及跨中截面上下缘的应力时程曲线。
短句来源
     The experiments were made at room temperature without lubrication. Tribological parameters at different velocities and under different loads as well as a large number of SEM micrographs of friction surfaces were obtained. The comparison betWeen the tribological performances show that ZQSn12-2-S16MnCr is the best combination of material for couples of worm gear.
     对10组不同的蜗杆副材料组合进行了摩擦学性能研究.在无润滑和常温条件下,得到了不同速度和载荷时的摩擦学参数及摩擦表面的电子显微镜照片.经分析,给出了摩擦学性能的比较结果,表明ZQSn12-2-S16MnCr为最佳蜗杆副新材料组合.
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  不同冲击速度
     The dynamic hardness of these materials was measured at different velocities.
     测量这些材料在不同冲击速度下的动态硬度值。
短句来源
  不同车速
     Through the indoor platform experiment, road experiment and environmental pollution of analogue tunnel experiment, the paper investigates the smog emission amount of diesel and CO emission of automobile in different velocities.
     通过室内台架实验、道路实验和模拟隧道污染环境实验,研究了不同车速下柴油车烟雾排放量和汽油车CO排放量。
短句来源
     The simulation results under different velocities and road situations show this algorithm can effectively control vehicle to run according to the pre-given trajectory, and have good robustness and adaptability for the change of velocity and road curvature.
     不同车速和路况的仿真结果表明,该控制算法可有效地控制汽车按照预期轨迹行驶,且对车速和道路曲率的变化具有较强的适应性和鲁棒性。
短句来源
     Referencing theLatest international standard ISO2631-1:1997(E),a parameter named synthetical vibration comfort is adopted to estimate the running performance by weighting the running performances of different velocities and different positions on the vehicle.
     并结合当前最新的车辆乘坐舒适性评价标准ISO2631-1:1997(E),以“综合振动舒适度”为行驶平顺性评价指标,通过设置不同车速及车辆上不同位置的权值,来考虑整车的行驶平顺性。
短句来源
     According to automobile theory,the velocities and loads of the tested automobile are set. Using the dynamometer to imitate the vehicle's constant velocity driving on real-road,the exhaust emissions of CO,HC,NO_x with the different shifts and different velocities are tested at the conditions of the different loads.
     根据汽车理论确定了试验车的试验速度点及载质量,利用底盘测功机模拟汽车实际道路行驶工况,测量了试验车在不同载质量下不同车速、不同档位的有害排放物CO、HC、NOx的排放量。
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  “different velocities”译为未确定词的双语例句
     Successful DS ingots are obtained with fully lamellar microstructure parallel to longitudinal axis using a polycrystalline seed material at different velocities of 1000μm/min and 1500μm/min in Ti54Al46 binary alloys and Ti54Al43Si3 ternary alloys.
     在1000μm/min和1500μm/min抽拉速度下,成功制备出了片层取向一致的Ti_(54)Al_(43)Si_3三元合金和Ti_(54)Al_(46)二元合金的定向组织,分析表明:最终柱状晶片层组织取向是与籽晶的片层方向一致的,即都是平行于试样的生长方向。
短句来源
     2. BaSO_4 was a stronger stimulus than Kaolin for induction of aggregation of platelets presented in CaCl_2-PRP, the different velocities of platlets aggregation from heterospecies induced by BaSO_4 were significantly cattle>ass>rabbit(P<0.01).
     ②BaSO_4诱导CaCl_2—PRP中血小板聚集强于白陶土,种间差异:牛>驴>家兔(P<0.01);
短句来源
     Above-and below-ground parts (shoot and root) grew at different velocities, relative growth rate of shoot being 0.234 ( g/g·week), and the value of root being 0.130. Net assimilation rate was 20.247 g/m2week.
     根系和地上部分呈现不同的生长速度,根的相对生长率为0.130g/g·week,地上部分为0.234g/g·week. 净同化率为20.247g/m~2week.
短句来源
     Based on the numerical simulation of flow field,the flow of the flood-impacted pipe was simulated and analyzed according to the theory and method of CFD. On this basis,the flow and pressure distribution was determined,the pressure on the exposed pipes under flood impact at different velocities has calculated.
     根据计算流体力学的原理和方法,以流场数值模拟为基础,利用大型流体计算软件对洪水冲击管道流场进行了模拟分析,得到了流场分布、压力分布情况,计算出了不同裸露程度管道在不同流速洪水冲击下的受力数值,分析了管道裸露程度对管壁受力的影响。
短句来源
     The CCMA inserted in the jugular vein was pulled out with the different powers(0w、25w and 30w) and the different velocities(5cm/min and 10cm/min).
     实验组4组,每组12只。 用冷循环微波天线微创插入兔颈总静脉内,以不同输出功率(0 w、25w和30w)与不同退出速度(5cm/min和10cm/min)退出颈总静脉,同时加压包扎颈静脉两周。
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  different velocities
Since particles of different dimensions will have different velocities and temperatures, the corresponding continuum model will have n velocities and n temperatures at every point.
      
Collision of two jets issuing from channels with parallel walls for different velocities at the free surfaces
      
Also examined is the problem of the boundary layer between two homogeneous flows, flowing with different velocities.
      
The mechanism of formation of eddy structures is followed in detail for different velocities of the discontinuity and different ratios of the sides of the region.
      
The distributions of the frictional stress on the surface of the cylinder for different velocities of the wall motion are found.
      
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In this paper the propagation of pulse wave on and the mutual coupling between conductors of a multi-conductor transmission system are analysed from the basic voltage and current equations. It is found from the analysis that on a completely transposed double-circuit three-phase system there will exist four pulse waves of different velocities originated from a system disturbance, and accordingly there will be four different values of the characteristic impedance. With these relations obtained, some...

In this paper the propagation of pulse wave on and the mutual coupling between conductors of a multi-conductor transmission system are analysed from the basic voltage and current equations. It is found from the analysis that on a completely transposed double-circuit three-phase system there will exist four pulse waves of different velocities originated from a system disturbance, and accordingly there will be four different values of the characteristic impedance. With these relations obtained, some peculiar phenomena of pulse wave propagation on lines can be explained, and the distortion, reflection, and refraction, etc., of waves can be computed according to given boundary conditions, thus giving theoretical support to practical measurements on lines. Examples are given to illustrate the method of analysis.

本文从电压和电流的基本方程出发,分析脉冲波在多导线传输系统的传播现象和多导线传输系统导线间的相互耦合作用。分析结果说明,在一轮换的双迴三相输电系统里,系统扰动将会产生四种不同速度的脉冲波,对这四种不同速度的脉冲波将有四个不同的特性阻抗。应用这些关系,将能解释线路上脉冲波传播的某些特殊现象,和按照给定的边际条件计算出波的畸变、反射和折射等等,从而对线路实测结果提供理论依据。文中举例说明这分析方法。 这脉冲波传播的理论分析被进一步推广应用到稳态交流运行情况,并推导出双迴输电线的等效电路。

Part I The Basic Equations Some basic equations, which may be used to describe and analyse the impact action of a linear cam on the needle in the whole acting zone, are derived by applying the fundamental theory of vibration of single-degree-of-freedom system, basing on hypotheses for simplifying the important parameter-the transverse stiffness of the needle. In general, the whole acting zone of a linear cam may be divided into: 1. The impact zone, in which the first impact and several re-impacts occur....

Part I The Basic Equations Some basic equations, which may be used to describe and analyse the impact action of a linear cam on the needle in the whole acting zone, are derived by applying the fundamental theory of vibration of single-degree-of-freedom system, basing on hypotheses for simplifying the important parameter-the transverse stiffness of the needle. In general, the whole acting zone of a linear cam may be divided into: 1. The impact zone, in which the first impact and several re-impacts occur. The peak value of first impact force is equal to the sum of the resistance force to the needle and the amplititude of vibration, which is directly proportional to the velocity, the frequency and the mass of the needle. The re-impact force may be considered from the same point of view as the first impact, but a decrement factor q must be taken into account, which is determined by the initial longitudinal velocity of the needle when it begins to re-impact with the cam. The intermittant time between the impacts is directly proportional to the longitudinal velocity of the needle and inversely proportional to the frictional resistance force. 2. The steady zone. The acting force on the needle in this zone is equal to the sum of the damping and frictional resistance force. A typical model of the oscillogram of a linear cam acting force on the needle is also given in this paper. Part II Experiments and Conclusions A lot of experiments with various kinds of needle, cams and some different velocities have been made for investigating the actual impact action of a linear cam on a needle in the whole acting zone. The results of these experiments show that the basic equations in Part I, used to explain the main characteristics of the linear cam impact action on the needle are reliable. Some of the data and photographs obtained in the experiments are illustrated in this paper as examples. Integrating the theoretical analyses with experimental investigations, interesting conclusions on the following items are obtained: typical model of the oscillegrams of the linear cam impact action on the needle, the peak value of the first impact force, the acting force in the steady zone, the re-impact force, the intermittant time between the first impact and the re-impact, the effects of the slope of the cam, and the horizontal velocity of the needle on the impact force etc.

第一部分基本方程根据单自由度系统振动原理和一些为了使重要参数k_2——横向刚度简化而设立的假说,导出了可以用来说明和分析直线三角在整个作用区域内对织针冲击作用的一些基本方程。一般说来,直线三角的整个作用区可以分为: 1.冲击区其中存在有第一次冲击和几次再冲击。第一次冲击力的峰值等于针槽对织针的阻力和振动的振幅之和,这个振幅和织针的速度、频率以及质量成正比。也可以象第一次冲击一样来考虑再冲击,但是必须考虑减缩因子q,而这q是由开始再冲击时,织针的初始纵向速度所确定的。二次冲击间的时间间隔和织针的纵向速度成正比,而和摩擦阻力成反比。 2 平稳区在平稳区内对织针的作用力等于阻尼和摩擦力之和。本文还给出了直线三角对织针作用力的波形图的典型模式。第二部分实验和结论进行了大量的用来探讨直线三角整个作用区内三角对织针作用力的实验。这些实验是在用各种不同织针、三角以及各种不同速度的情况下进行的。这些实验的结果表明:第一部分中用来解释直线三角对织针冲击作用特性的基本方程是可靠的。文中以举例的方式,列举了一些由实验得到的数据和照片。结合理论分析和实验考查,得出了一些有意义的结论,这些结论是关于:在整个作用区内三角对织针作用力的波...

第一部分基本方程根据单自由度系统振动原理和一些为了使重要参数k_2——横向刚度简化而设立的假说,导出了可以用来说明和分析直线三角在整个作用区域内对织针冲击作用的一些基本方程。一般说来,直线三角的整个作用区可以分为: 1.冲击区其中存在有第一次冲击和几次再冲击。第一次冲击力的峰值等于针槽对织针的阻力和振动的振幅之和,这个振幅和织针的速度、频率以及质量成正比。也可以象第一次冲击一样来考虑再冲击,但是必须考虑减缩因子q,而这q是由开始再冲击时,织针的初始纵向速度所确定的。二次冲击间的时间间隔和织针的纵向速度成正比,而和摩擦阻力成反比。 2 平稳区在平稳区内对织针的作用力等于阻尼和摩擦力之和。本文还给出了直线三角对织针作用力的波形图的典型模式。第二部分实验和结论进行了大量的用来探讨直线三角整个作用区内三角对织针作用力的实验。这些实验是在用各种不同织针、三角以及各种不同速度的情况下进行的。这些实验的结果表明:第一部分中用来解释直线三角对织针冲击作用特性的基本方程是可靠的。文中以举例的方式,列举了一些由实验得到的数据和照片。结合理论分析和实验考查,得出了一些有意义的结论,这些结论是关于:在整个作用区内三角对织针作用力的波形的典型模式;第一次冲击力峰值;再冲击力;平稳区作用力;二次冲击间的时间间隔以及三角斜率和织针速度对冲击力的影响等的结论。

This paper discusses the role played by the interstellar gas in spiral galaxies. To represent a disk-shaped galaxy we adopt a two-gas-disk model (one for the interstellar gas disk and the other for the stellar disk). The following conclusions are drawn from our analysis: 1. With the different velocity dispersion between gas and stars, the stellar arm must be divorced from the gas arm; 2. Such divorce makes the spiral mode of density waves in a disk-shaped galaxy unstable; 3. The ratio η between the densities...

This paper discusses the role played by the interstellar gas in spiral galaxies. To represent a disk-shaped galaxy we adopt a two-gas-disk model (one for the interstellar gas disk and the other for the stellar disk). The following conclusions are drawn from our analysis: 1. With the different velocity dispersion between gas and stars, the stellar arm must be divorced from the gas arm; 2. Such divorce makes the spiral mode of density waves in a disk-shaped galaxy unstable; 3. The ratio η between the densities of gas and stars in galaxies should be less than a certain value to maintain the density waves for a long time; 4. The less the ratio η is, the more tightly the spiral arm winds up.

本文讨论旋涡星系中星际气体所起的作用,采用双气盘模型模拟盘状星系。由分析可知:1.由于星际气体与恒星具有不同的速度弥散度,因此恒星臂必然与气体臂分离。2.这样的分离导致密度波的旋涡模式的不稳定性。3.为使密度波得以长期维持,星系中气体密度与恒星密度之比η应小于某一值。4.系数η越小,则旋臂越紧卷。

 
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