Phase IV is the inspiratory downstroke. This is the beginningof the inhalation and the carbon dioxide curve falls steeply to zero.
阶段IV是吸气下降支。这是吸入的开始及二氧化碳曲线急速降为零。
2
Taking account of the strength softening effect of slippage, the beginning section of lateral shear curve is an ascending curve.
分析认为，由于孔壁界面滑移的软化效应，侧阻力曲线始端变为上升曲线。
3
So you beginning machinists won't feel bad, Tom had about four hours of machining in the cover the other day and stopped to take some video of the curve being cut on the rotary table.