...已站住脚跟,衡态论已失去优势但仍有科学家不愿接受宇宙有个开始的结论于是又有人提出一种新的假说: 循环论 ( oscillating theory )这个假说承认宇宙是由大爆炸而来,宇宙在膨胀之中;但由于万有引力,有一天宇宙不再膨胀,进而开始紧缩,密度和温度不断增高后,复变成...
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oscillating universe theory 振荡宇宙理论
oscillating-surface theory 振动面理论
oscillating fluid mechanics theory 振荡流体力学理论
The wake flow of stator vanes and the unsteady flow in the passage of rotor blades were solved by using oscillating fluid mechanics theory and parametric polynomial method.
采用参数多项式方法和振荡流体力学理论，求解静子叶片后的尾流场及尾流场作用下转子叶片通道内的非定常流场。
Oscillating saw: powerful, portable, variable speed control without step, precise and stable, adopts the theory of Stryker cutter adapter, can be equipped blades the thickness of 0.8~1.2.
摆锯：动力强大，轻便小巧，无极变速，采用史塞克刀架原理设计，可接驳0.8~1.2厚度的锯片。
The reason why the speed of oscillating flying shear could not be raised was analyzed by making use of the torsional vibration theory, moreover, the solutions were presented.
采用扭转振动理论，分析和讨论了影响提高摆式飞剪速度的原因，并提出了解决问题的对策。
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