During one oscillation cycle 12 images in sequence are captured by phase-locked technique.
采用相位锁定技术,在一个振动周期内捕捉了12个不同相位时刻的流场图片。
The subsystems of the Asia-Pacific summer monsoon have a concurrent variation at the interannual scale, with the oscillation cycle of 2 to 3 years.
亚洲-太平洋夏季风在年际尺度上具有一致的变化特征,表现为2~3年的振荡周期。
Steel parts are most likely to be magnetized, including escapement wheel and escapement fork, and spring will affect and balance the magnetic interference oscillation cycle.
钢质零件最容易被磁化,包括擒纵轮和擒纵叉,还有游丝,磁力会影响和干扰摆轮的震荡周期。
Before cycle 24 commenced, the position and strength of the torsional oscillation correctly predicted the late arrival of this cycle's sunspot activity.
在第24个周期开始前,人们通过太阳的扭转振动的位置和强度准确的预知了第24周期内太阳黑子活动的推迟。
La Nina is a natural 3-6-year cycle, and the cold stretch of a periodic thermal oscillation in ocean surface temperatures that occurs throughout the tropical Pacific.
拉尼娜每隔3到6年发生一次,太平洋热带地区海水温度会随之发生周期性的异常变冷。
The investigation on difference equation is to discuss its eventually behavior of the solutions, including oscillation, cycle length and global asymptotic stability, etc.
对差分方程的研究就是讨论它的解的最终性态,包括振动性、循环长度及全局渐近稳定性等。
The study found that there are still a long-term polar drift and cycle of about 30 years of long-period oscillation.
经研究,发现地极还存在长期的漂移和周期约30年的长周期摆动。
This paper presents an approximate analytic method which determines the characteristics of aircraft lateral-directional limit cycle oscillation induced by aerodynamic hysteresis.
本文给出近似解析公式,确定空气动力迟滞引起的飞机横航向极限环振荡特性。
Some sufficient conditions for the strict oscillation, the cycle length and the position of the extreme in a semicycle of the equation are obtained.
得到了方程( )严格振动的充分条件,环长以及环上极值位置。
In the design of current-mode PWM DC-DC converters, the slope compensation method widely used to prevent sub-harmonic oscillation can significantly weaken the load capacity under a high duty cycle.
电流模pwm集成dc - DC变换器设计中,为了防止亚谐波振荡而普遍采用的斜坡补偿,会在占空比较大时严重影响芯片的带载能力。
The QBO (quasi-biennial oscillation) in the climate system, with a mean cycle-length slightly above or below 2 years, is studied in a simple forced dynamical system.
用一个有外强迫的、简单的动力系统研究气候系统中的准两年振荡(平均周期长度比两年稍长或稍短的准周期振荡)。
The NDVI had the same characteristics of cycle oscillation as that of runoff.
NDVI与径流量具有同等的周期变化特点。
And then, we mainly discuss the peak current controlling mode and the sub-harmonic oscillation when the duty cycle exceeds 50%.
同时,着重分析了峰值电流控制模式下,由于电流扰动和占空比扰动导致系统在占空比大于50%情况下而出现次谐波振荡原因。
And then, we mainly discuss the peak current controlling mode and the sub-harmonic oscillation when the duty cycle exceeds 50%.
同时,着重分析了峰值电流控制模式下,由于电流扰动和占空比扰动导致系统在占空比大于50%情况下而出现次谐波振荡原因。
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