初速

chū sù
  • initial velocity;commencing speed
初速初速
初速 [chū sù]
  • [initial velocity] 物理学上指运动的物体在一个运动过程中开始时的速度

初速[chū sù]
  1. 登月轨道初速及飞行时间限制;

    The limits of initial velocity and flight time of landing moon orbit ;

  2. 脉冲运用下的电子初速分布;

    Electron initial velocity distribution in pulse operation ;

  3. 建立火控弹道的数学模型,运用MATLAB软件对该数学模型进行计算分析,得出了弹丸射程与转数之间的关系,以及弹丸初速、射角变化对转数和射程关系的影响。

    A fire-control ballistic mathematical model to study the relation between range and revolution of projectile was established and evaluated based on the software of MATLAB .

  4. 提出了一种速度衰减系数α可预先确定的测量全预制和半预制破片群初速v_0的电探针方法。

    An electric probe measurement technique of the initial velocities for both preformed and fireformed fragment groupe with velocity attenuation coefficient (α) determined previously is presented .

  5. 基于Gurney假设的一种非对称型战斗部破片初速计算

    Calculation of First Velocity of the Unsymmetrical Warhead ' Fragment Based on Gurney Hypothesis

  6. 系统选用AVR嵌入式器件为核心控制器件,实现着靶初速查表算法和侵彻行程计算实时快速算法;数字逻辑部分由CPLD集成,实现了系统的微小化和低功耗。

    The whole system selected embedded AVR to be the core controller , adopted CPLD to integrate the digital part logic , achieved microminiaturization and lower consumption .

  7. 同样,在Ca2+释放动力学实验中,不同浓度的K+调控了由NADH诱导的Ca2+释放初速率。

    The initial rates of Ca ~ 2 + release were also modulated by different concentrations of K ~ + .

  8. 通过二级轻气炮发射方式、激光无阻测量方法测量了不同材料、不同直径的球形破片在不同初速条件下长距离(最大距离达120m)飞行时的速度衰减规律。

    Using two-stage light gas gun and laser technique for velocity measurement , we studied the long-distance flight performances of spherical fragments with different materials and different diameters .

  9. 目的:研究对氨基苯甲酸酯同系物与大鼠肝微粒体形成细胞色素P450(P450)代谢中间体络合物(P450-MI)的初速率和分子轨道指数的相关性。

    Objective : To study the correlations between the initial formation velocities ( v ) of the cytochrome P 450 ( P 450 ) metabolic intermediate complex of p aminobenzoates with rat hepatic microsomes and their molecular orbital indexes .

  10. 在研究IS-RPB转速和撞击流初速对萃取级效率影响的基础上,确定了最适宜操作条件。

    Based on the studies of the effects of main parameters on mass transfer stage efficiency , the optimal operating factors were obtained .

  11. QLZ87式和美国MK19-3型40毫米自动枪榴弹发射器相比,QLZ87式在射程、初速和射速方面较差。

    Compared to the U.S.MK19-340mm automatic grenade launcher , the QLZ87 is inferior in range , muzzle velocity , and rate of fire .

  12. 实验表明,生产优质涤纶FDY的合理工艺为:纺丝初速3000~3200m/min、后拉伸倍数1.5~1.6、热定型温度140~150℃。

    The experiments show that the rational process to produce high quality polyester FDY is : spinning speed : 3000 ~ 3200m / min , after drawing ratio : 1.5 ~ 1.6 , heat setting temperature : 140 ~ 150 ℃ .

  13. 研究结果表明:在中心线起爆与端面起爆方式下的MEFP均能形成初速大、攻角小、气动性能良好的EFP。

    The result indicates that it have the high elementary invite 、 the small angle of attack and well pneumatic steady shape of EFP in the MEFP warhead with the centre line detonation and the plane detonation .

  14. 结果表明,在正己酸的初始浓度C0HA较小时,反应初速率V0随正己酸浓度增大而增大,但随正丁醇表观浓度增大而减小;

    The result shows that the initial rate V 0 of the esterification reaction increases as hexanoic acid concentration increases or as n-butanol concentration decreases , when the initial concentration of hexanoic acid is small ;

  15. 针对一种特定的非对称型战斗部,利用Gurney假设推导出破片平均初速计算式,计算结果有一定的准确度,表明一定条件下Gurney假设仍可适用于非对称型战斗部的工程实践中。

    The paper aims at an especial unsymmetrical warhead , educes calculated expressions of average first velocity of fragment using Gurney hypothesis , the result has some veracity , indicates that Gurney hypothesis is the same with the unsymmetrical warhead in practice .

  16. 醇结构对MIECC有影响,在反应初速率及平衡产率方面均遵循伯醇>仲醇>叔醇的规律。

    The structure of amyl alcohol affects both the initial reaction rate and the ultimate yield of amyl n caprylate in the following sequence : primary alcohol > secondary alcohol > tertiary alcohol .

  17. 悬浮液界面沉降初速影响因素的研究

    Study on factors affecting the initial setting velocity of suspension interface

  18. 内外弹道设计中的初速概率误差分析

    Error analysis of initial velocity on internal and external ballistic design

  19. 频率-初速测桩法的应用与提高

    The application and improvement of the frequency-initial velocity pile measurement method

  20. 测量转管炮炮口初速的一种新方法

    A New Method for Measuring the Muzzle Velocity of Multi-barrel Rotary Gun

  21. 破片群初速的电探针测量法

    Electric probe measurement technique of the initial velocities for fragments

  22. 初速或然误差模拟公式的试验验证

    Experimental Verification of the Formulas for the Statistic Deviation of Muzzle Velocity

  23. 实用热阴极的电子初速分布的研究

    Research on electron initial velocity distribution of practical THERMIONIC CATHODES

  24. 火药性能对膛压及初速的影响研究

    The Research on Propellant Performance Effect To Chamber Press and Initial Velocity

  25. 弹丸初速膛口激光实时测量系统研究

    Study on the laser system for real-time measuring the muzzle velocity of projectile

  26. 激光实时测量炮口初速技术研究

    Study on Laser Real-time Measurement of Projectile Muzzle Velocity

  27. 枪弹初速激光测试系统方案设计

    Study on laser measurement system of bullet muzzle velocity

  28. 由炮膛磨损规律确定火炮初速减退量

    Determination of Muzzle Velocity Loss by Law of Bore Wear a certain liveliness

  29. 势能增加的相反方向,如果在这里零初速。

    The force is always in the direction opposite to increasing potential energy .

  30. 光纤布拉格光栅应变传感器炮口初速测试技术研究

    Research on Technic of Measuring Muzzle Velocity Using Fiber Bragg Grating Strain Sensors