The tripping device is basically divided into the instantaneous electromagnetic release and the time delay thermal release, which are used for protection of circuit from shortcircuit and overload respectively. 高压断路器弹簧操动机构分闸脱扣部分的改进断路器由瞬时动作的电磁脱扣器和延时动作的热脱扣器组成,分别用作线路的短路和过载保护。
In the authors opinion, the poet denied the circulating time and linear time, while affirm the instantaneous time and current time. 本文认为,诗人否定了循环时间和线性时间,但肯定了作为“瞬时性”与“当下性”的时间。
Dw/ dt is the instantaneous power at time t. 如果w是功,dw/dt,,if,w,is,the,work,在t时间的瞬时功率。
And now you will understand how we define the instantaneous velocity at time t which is different from an average velocity between two time intervals. 现在明白了吗,t时刻,的瞬时速度是怎样定义的,与两时刻间的平均速度相比,瞬时速度并不一样。
In addition, due to the introduction of the time-delay element, which just delays the last instantaneous control torque for a unit time, the complexity of controller design is greatly reduced. 由于引入了时延环节,只需对上一时刻控制力矩进行单位时延,达到大大简化控制器设计复杂度的目的。
The fuze is provided with some Anti-jamming function by means of instantaneous time average zero-over rate representing Doppler signal's frequency of continuous wave radio Doppler system fuze. 用短时平均过零率表征连续波多普勒体制无线电近炸引信多普勒信号频率,使引信具有一定的抗干扰能力。
On the Relationship between Environmental Instantaneous Concentration and Time Weighted Average Concentration of Silica Dust in Workplaces 生产场所矽尘环境瞬时浓度与时间加权平均浓度关系的研究
All the conventional vibrators use the sweep signal of which the instantaneous frequency shows linear change with time. 常规可控震源都是采用瞬时频率随时间线性变化的扫描信号。
The oxidation kinetics deviates from the parabolic rate law and its instantaneous rate decreases continuously with time more rapidly than required by the parabolic rate law. 合金的氧化动力学偏离抛物线规律,其瞬时抛物线速率常数随时间而降低,降低幅度大于相应的按抛物线规律变化幅度。
By choosing focus mode according to the instantaneous state at discrete time, then adjusting the object function and updating the gain matrix, consequently a bigger damping ratio was given to the focus model. 在离散时刻上依据状态选取主控模态,调整目标函数并更新增益矩阵,从而使主控模态具有较大的阻尼。
Comparing the gelation time with delay time, it found that for both instantaneous and delay demixing systems gelation time was much longer than delay time. 与延迟分相时间的比较实验揭示了:无论对延迟分相体系或是对瞬间分相体系,成膜过程中的凝胶时间远大于延迟分相时间。
Under instantaneous replenishment with zero lead time, the demand rate is constant D when the inventory is positive. 在瞬时进货的前提下,当库存量为正数时,需求率为常数D。
The complicated original data set is decomposed into a series of intrinsic mode functions ( IMF) and a residue by the empirical mode decomposition ( EMD). Each IMF is transformed into signal amplitudes and instantaneous frequencies as the functions of time by the Hilbert transform method. 此方法是通过经验模态分解(EMD)将一复杂的原始数据序列分解成一组本征模函数(IMF)和一个残余项,然后再对每一个IMF进行Hilbert变换。
This paper is to study the linear minimum variance estimation for discrete-time systems with instantaneous and two time delayed measurements. 本文研究具有即时观测和两个延迟观测系统的线性最小均方差估计。
The existence instantaneous of thin wall part is demonstrated theoretically, the instantaneous time for the object turning into the thin wall part is figured out and the corresponding conditions are also given. 从理论上论证了瞬时薄壁件的存在性,计算出物体成为薄壁件的瞬时时间并论证了瞬时物体成为薄壁件的条件。
The result shows that both instantaneous response time and amplitude of vibration in the sliding bearing flexible rotor system decrease with oil inertia force at a certain speed. 研究表明:考虑惯性力后,此转子系统在定转速条件下,突加不平衡质量的响应时间和振幅都减小了。
According to the tangent slope on every point of kinetics curve, the instantaneous reacting velocity of every time can be obtained during reacting in batch autoclave and the fastest instantaneous velocity found. 利用动力学曲线上各点切线斜率,求得间歇釜反应进程中各个时刻的瞬时反应速度,并找出最大瞬时速度。
With the Hilbert transform, the 'intrinsic mode functions' yield instantaneous frequencies as functions of time that give sharp identifications of imbedded structures. The final presentation of the results is an energy-frequency-time distribution, designated as the Hilbert spectrum. 用Hilbert变换对每个内蕴模式函数变换,可得到瞬时频率和瞬时频率密度,构成能量一时间一频率三维分布的Hilbert时频分布谱图。
By the method of Hilbert-Huang transform ( HHT), this article defines an instantaneous frequency time history of seismic acceleration record, which can to some extent quantify the frequency-non-stationary characteristics of original acceleration record. 利用HHT方法定义了一种地震加速度记录的瞬时频率时程,该瞬时频率时程能够在一定程度上将原始加速度记录的频率非平稳特性予以量化。
The fuze of induction settable at muzzle demands its power supply can provide electric energy to fuze circuit normally. The multilayer piezoelectric power supply has the characteristics of resisting high over loading, instantaneous activation time and high output energy. 炮口感应装定的引信要求电源在膛内正常供电,多层压电电源具有抗高过载、激活时间短和输出能量高的特点。
The instantaneous and time variant reliability analysis of ship hull subjected to corrosion and fatigue 疲劳和腐蚀损伤下船体的瞬时与时变可靠性分析
The high resolution instantaneous Doppler frequency of different time is obtained by processing the Radar echo data with short time Fourier transform or Gabor transform, then the instantaneous ISAR images of different time are obtained by computer experiment. 通过对回波数据进行短时傅里叶变换或Gabor变换,得到不同时刻的高分辨瞬时多普勒谱,然后对观测数据段的不同时刻进行瞬时成像。
The instantaneous overcurrent protection can only protect a part of the line, the other internal fault can only be protected by the time delay instantaneous overcurrent protection and definite time overcurrent protection. 电流速断保护只能保护线路全长的一部分,其保护范围以外的区内故障需要通过延时由限时电流速断保护甚至定时限过电流保护来切除。
The results indicates maximum instantaneous input energy lives at pulses time story and is proportion to the ratios of PGV/ PGA. 结果表明,速度脉冲包含地震动的最大瞬时输入能,其值大小于与PGV/PGA比值成正比。
On the contents of neither the programme or the programme, they are different from similar programs in the past, instantaneous time raises upsurge of program, setting off a new round of TV wave to make friends on love and marriage. 无论是节目形式还是节目内容上,它们都有别于以往的同类节目,瞬时间引发了收视热潮,掀起了新一轮的电视婚恋交友浪潮。
The analysis of corresponding nucleation curves shows that the nucleation curve of solution added potassium citrate coincides with theoretical nucleation curve most and its nucleation mode includes continuous nucleation and instantaneous nucleation at the same time. 通过分析其对应的成核曲线,发现含柠檬酸钾的镀液的成核曲线与理论成核曲线最为接近,其成核方式为连续成核和瞬时成核共存。
Through the analysis of unit COP in instantaneous make-up water time, respectively do some research of instantaneous heating consumption and circulating heating consumption. 通过实测分析了系统直热补水时段机组的COP,并对系统能耗中的直热加热模式及循环再热模式的能耗分别进行了研究。
When depth of roadways is larger, it is closer to critical state, small disturbance can cause rock crack to extend dynamically at instantaneous time, and finally roadways will collapse. 当巷道埋深较大时,越接近临界稳定状态;此时较小的扰动便可以导致裂纹的大规模瞬时动力扩展,诱发巷道的失稳破坏。
Although Impressionism started to pay attention to the expression of the time, they remained in the instantaneous concept of the time, being still restrained in the concept of time of science. 印象派开始关注时间的表达,但是停留在时间的瞬间观念上,依然没有跳出自然科学的时间观。