It is suggested to use the concept of effective bulk velocity to calculate turbulence length integrate scale.

作者建议使用有效平均速度的概念来计算湍流的积分长度尺度。

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The influence of percentage of gas in oil, slope of side plate, effective bulk modulus, and centrifugal force and gear pair vibration on trapped oil pressure is studied by numerical simulation.

采用数值模拟方法研究了含气比，侧板倾斜，有效体积模量，离心力和齿轮副的振动等因素对困油压力的影响。

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At a hearing last June, an FDA official said the agency does not know how often counterfeit ingredients make their way into U.S. products but that the vast majority of imported bulk drugs are safe and effective.

CNN: Health - U.S. to seek tougher law on fake drug ingredients

More to the point, the bulk of health reform that deals with making our health care system more effective and efficient includes many common-sense provisions that have had bipartisan support for years.

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