线收缩

发现生坯密度越大，排蜡后绝缘子线收缩越小，致密化程度大大提高；随排蜡温度升高，绝缘子致密化程度增大，致密化速率减小。

linear equation

linear first-order differential equation【数】

piecewise linear discriminant function【数】

linear accelerator radiosurgery

recirculating ball linear bearing【机】

linear equating

bearing for guiding longitudinally linear-moving and rotating parts

linear expansion