"There is just too much friction in getting capital to flow," he says.
他说：“获得这些用于周转的资金真是太难了！”
Experimental research of heat transfer and flow friction properties in twisted tube heat exchanger;
计算了层流状态下扭曲椭圆管内的流动与换热情况。
Experimental research of heat transfer and flow friction properties in twisted tube heat exchanger;
计算了层流状态下扭曲椭圆管内的流动与换热情况。
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