relative pitch

The lead of the optoelectronic sight is a lead value of weapon hitting points relative to target current points in pitch and azimuth on the case of hitting moving targets.

光电瞄具提前量是指武器命中运动目标情况下，在俯仰和方位上赋予武器命中点相对于目标现在点的提前值。

The relative spiral angle and pressure angle errors were defined and introduced into the evaluation of the teeth mating precision, which had been carried out by the measurements of teeth form and pitch errors.

通过引入相对螺旋角误差与相对压力角误差的概念，对齿形与齿距误差进行了测量，从而评价了轮齿研齿前后的实际啮合精度。

But the infants showed exactly the opposite pattern, excelling at absolute pitch but unable to recognize changes in relative pitch.

婴儿的测试结果则恰恰相反，他们能准确地判断绝对音高，却无法分辨相对音高的变化。