材料物理与化学 meaning in English

material physics and chemistry
materials physics and chemistry

Materials physics and chemistry
材料物理与化学
On the base of milling ball interaction during milling process , the powder height of each collision can be calculated . if the impact of milling ball takes as hertz elastic collision , the maximum real strain and the maximum tangential strain are obtained as follows , e , . . , ln [ h , / ( h0 ? vrcos6 / 2 ) ] = vrsin6 / h0 ? / q , t2rt2 / 2om ~ h , j where s , , p , v are maximum real strain , the maximum tangential strain , friction coefficient and the velocity of milling ball
对球磨过程中磨球相互作用作了一些假设后，可以计算出每次碰撞所获得粉末体高度值；将磨球的碰撞作为hertz弹性碰撞，碰撞时的速度分解为法向速度和切向速度得出粉末的最大真应变和最大切应变为湖南大学材料物理与化学专业硕士论文r 。