The main reason is that software models can often be terribly inaccurate in unpredictable ways : clearly , the practical value of any model is directly proportional to its accuracy 主要原因是软件模式经常会导致不可预知的严重性错误：我们都清楚，任何一个模式的实际价值与它的正确性直接成比例。
Referring first to the equation of the shunt motor shows that the downwards slop of the speed / torque curve is directly proportional to the armature resistance with constant flux and voltage 并励电动机（机械特性）方程表明：若磁通和电压恒定，则向下倾斜的转矩/速度曲线的斜率是直接与电枢电阻成正比的。
（ the force between two point charges at rest is directly proportional to the product of the charges and inversely proportional to the square of the distance between them 在真空中，两个静止的点电荷之间的相互作用力的大小与两电荷所带电量的乘积成正比，与它们之间距离的平方成反比，作用力的方向沿两电荷的连线。
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force , in the same direction as the net force , and inversely proportional to the mass of the object 牛顿第一定律：任何物体都保持静止或匀速直线运动的状态，直到受到其它物体的作用力迫使它改变这种状态为止。
Displacement polarization is directly proportional to loading electric field ; turning - direction polarization results from the average of domain ' s inherent electric moment in the polarization direction by the weight of boltzmann energy 位移极化正比于外加电场；将电畴的固有电矩在极化方向按玻尔兹曼能量取加权平均得到转向极化。
The analysis indicates that the maximum deflection is directly proportional to density and the square of span , and inversely proportional to stress , but independent of diameter and elastic modulus 分析结果表明：由于丝线长径比很大，丝线的最大挠度跟密度以及跨度的平方成正比，与所受的应力成反比，而同丝线的直径的具体数值和材料的刚度无关。
The law of universal gravitation states that every particle of matter in the universe attracts every other with a force which is directly proportional to the product of their masses and inversely proportional to the aquare of the disance between them 万有引力定律声明,宇宙中物质的微粒吸引其它物质的力量与它们的质量成正比,而与它们之间距离的平方成反比
The theory of lift - mode scan capacitance microscope lm - scm is analyzed . under the hypothesis of small amplitude , it is found that the oscillation amplitude of the cantilever is directly proportional to the gradient of the surface capacitance 对升高模式扫描电容显微镜lm - scm进行了理论分析，发现在小振幅近似下针尖的振幅直接正比于样品表面电容的梯度分布。
The law of universal gravitation states that every particle of matter in the universe attracts every other with a force which is directly proportional to the product of their masses and inversely proportional to the aquare of the disance between them 宇宙什么的法规解释在宇宙中所有物质的颗粒以一种力吸引其他的，那种力是直接的比例来产生他们大的而且相反的比例什么在它们之间的距离。 。
Intelligent actuator receives the output signal from the regulator and compares it with valve position feedback signal and obtains output signal which is directly proportional to the output signal of regulator according to the deviation between the signals and then control the pneumatic actuator 智能执行器接受调节器的输出信号，在与阀位反馈信号进行比较，然后根据两者的偏差产生和调节器输出信号成正比例的输出信号控制执行器。
