The results show that floor relief stress of 762 working face exhibits a nearly lineardecrease, and forms relief zone in the headgate of 962 working face.
结果表明：762 工作面开采对底板卸压应力基本是以线性降低，在 962工作面下平巷形成卸压；
2
The length of the total gap of the fourth metacarpal-phalangeal joint showed a linear increase up to 13 days, followed by a lineardecrease until it closed.
骺间距在前13天迅速增加，然后线性下降，随着其接近闭合值而逐渐减小。
3
As the length of mandrel extension increases, the trend of thinning-rate change can be failed into three stages, namely lineardecrease stage, transitional stage and nonlinear increase stage.