... PO 4 - 活度常数(activity constant)： HA+B A - +HB + K 0 = a A - a HB + /( a HA a A - ) 浓度常数(concentration constant)： K c = [A-] [HB+] / [HA] [B]= K 0 /（r HB + r A - ） 混合常数(mix constant)：K mix 有浓度，有活度 3.1.3 溶液中其它相关...
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换句话说，任意时刻A物质的浓度等于初始浓度，减去常数乘以时间。
In other words, the concentration of at any time is given by the initial concentration, t minus the rate constant times time.
按指数生长模型计算出生长速率常数和总发热量，进而求出最佳用药质量浓度。
In the logarithmic phase of growth, according to an exponential law, the growth rate constant and heat output at different concentration of pilose autler had been calculated.
在文中，我们也分析了可以把表面非平衡少子浓度作常数处理的条件。
In this paper, the condition under which the surface excess minority carrier density may be treated as a constant is also analysed.
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