当周期物体的单胞空间频率交叉项比主频率项小到可忽略的程度时，角度限制失效。
If the cross terms of the spatial frequencies for the unit cell of periodical object are much smaller than the main frequency terms, the restriction of the Angle is not necessary.
采用无损接触检测及交叉试验法研究了电激励信号的频率和电压对果品电特性的影响。
The influences of frequency and voltage of electric excitation signal on electric property of fruits with non-destructive and orthogonal experiment method were studied.
另外，旋转机械由多个转动部件组成，不同转轴对应的阶比在频率上会有交叉。
In addition, rotating machinery is composed of many rotating parts. Orders of different shafts cross each other in frequency.
此外，故障电压行波于非对称短路点发生线模与零模行波相互交叉透射，致使故障电压自然频率“混叠”。
In addition, line mode and zero-mode voltage wave cross each other at the point of fault which causes the natural frequency "aliasing".
锥突破的高频率最高的缺乏意味着陡峭的，有其内在的扭曲，避免了相交叉。
The lack of cone break up at high frequencies means that steep and complex crossovers with their inherent phase distortions are avoided.
锥突破的高频率最高的缺乏意味着陡峭的，有其内在的扭曲，避免了相交叉。
The lack of cone break up at high frequencies means that steep and complex crossovers with their inherent phase distortions are avoided.
应用推荐