FDDS have a bulk density lower than gastric fluids and thus remain buoyancy in the stomach without affecting the gastric emptying rate for a prolonged period of time.
该制剂口服后可以维持自身密度小于胃内容物密度，从而较长时间在胃中呈漂浮状态，而不受胃排空速率的影响。
The difference between amount per unit volume and bulk density of refractory castable in definition is pointed out, a testing method of amount per unit volume of refractory castable is introduced.
指出了耐火浇注料单位体积用量与体积密度定义上的区别，介绍了一种测试耐火浇注料单位体积用量的试验方法。
There exists a heat transfer mechanism of air convection in the range of bulk density of high loft nonwoven fabrics.
在高膨松性非织造布的体积密度范围内，有空气对流传热机理存在。
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