The corresponding relationship between pressure of air distributing pipe and pulsating current
跳汰风管压力与脉动水流特性的对应关系研究
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用数值方法给出了各种参数共振的响应曲线,分析了其存在区域以及响应频率与脉动流频率之间的关系.
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The flowing counter pulsating and volume of blood stream were showed clearly in colour doppler.
彩色多普勒(doppler)清楚显示眼上静脉血液逆向流动及搏动频谱.
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