Study on the equation of scale-inhibiting efficiency of polyaspartic acid;
聚天冬氨酸阻垢效能方程的研究
A modified equation for correlating experimental data——nonintegral power polynomial equation;
拟合实验数据的新方程——非整数幂多项式方程
At first,the limitation of the general heat conduction equation is discussed and then,nonlinear heat conduction equations are derived,when we consider that thermal conductivity,specific heat capacity and density are dependent of temperature.
研究了线性情形中热传导方程的局限性,在此基础上考虑到热传导方程中导热系数、比热容、密度与温度的关系,导出了非线性热传导方程,并求出了几类非线性热传导方程的孤波解。
In a polynomial system of equations (PS)=0,let m>0 be the number of equations,and n>0 be the number of variables.
设一个多项式方程组中的方程个数为m >0 ,变元个数为n>0 ,该文在m=n的基组结式消元法的基础上 ,针对m ≥n的情况 ,建立了相应的理论 ,构造了新的消元步骤。
A mathematical model of parametric equations of theoretical and practical tooth profiles is established.
提出并分析了偏心轮推杆行星传动的传动原理 ,建立了理论齿廓和实际齿廓方程 ;证明了定传动比 ,采用不同的安装方式 ,可得到 6种不同的传动
The empiric formula is derived for the friction coefficient of bearing, thus providing the basis for the design of machines.
在HZS－1型滑动轴承试验台上进行一系列试验，测定了全液体润滑条件下轴承摩擦系数变化的规律，提出用电子计算机辅助进行一元线性回归分析，建立了轴承摩擦系数试验方程，为机械设计提供了依据。
The purpose of this study was to study energy expenditure of different walking speed in order to get formulas which can calculate energy expenditure of walking and daily physical activity.
目的:研究不同步速下行走时的能量消耗水平,进而推导出根据计步器参数推算步行能耗和一日总能耗的方程,以期为进一步开发计步器功能提供参考依据。
The result shows that equationⅠand equationⅡhas a markedly lower residual sum of squares.
本文提出了二个新的种群增长方程，方程Ⅰ和方程Ⅱ。
In this paper,equation Ⅰand equationⅡ is proposed.
本文提出了二个新的种群增长方程，方程Ⅰ和方程Ⅱ。