The moduli and velocities remain steady and unchanged at medium saturationarea.
中等饱和度时，模量、波速基本不随饱和度变化。
2
On the grounds of the pinch-off voltage, the cut-off point of variable resistance area and saturationarea can be fixed, so the field effect tube can reliably work in the saturationarea.
根据夹断电压能确定可变电阻区与饱和区的分界点，使场效应管可靠地工作在饱和区的原理。
3
The reservoirs of the medium rank coal characterize low gas content, low gas saturation, good permeability, and high energy in Hedong area of Shanxi, China.