以水平提花轮控制沉降片的运动状态为研究对象，从理论上建立了提花轮齿和两种钢米与双片鼻沉降片的啮合关系式，并定量地分析了提花轮......

Sinkers are quicksand enthusiasts that crave the sensation of being trapped in deep mud while being sucked downward. Alt......