void coefficient [核] 空穴系数 ; 空隙系数 ; 空泡系数
void reactivity coefficient [核] 反应性空穴系数 ; 反应性空泡系数
void coefficient of reactivity [核] 反应性空穴系数
sodium-void coefficient [核] 钠空穴系数
negative void coefficient 负空泡系数
reactivity void coefficient 反应性空泡系数
moderator void coefficient 缓和剂空泡系数
negative void reactivity coefficient 反应性负空泡系数 ; 负空泡反应度系数
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系，并从中得出了一些重要的结论。
The oxygen transfer coefficient is bigger relatively because of its big void rate and specific surface area.
该填料因具有较大孔隙率和比表面积且结构呈针状，对大气泡可有效切割，氧传递系数较大。
Several of the focuses of CFD model in packed-bed reactors were studied, namely, the momentum exchange coefficient, the capillary pressure and the void fraction.
近年来填充床反应器CFD数学模型韵几个研究重点是动量交换系数、毛细管压力以及床层空隙率的非均匀分布性。
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