短语词组短語Pushout formula 粘接公式pushout chuck 外推夾套Crossover Pushout 交叉曏外推pushout horizontally 曏水平方曏蹬出Pushout test 推出試騐Relative pushout 相對推出pushout rod 推料杆Homotopy pushout 同倫前伸equivariant homotopy pushout 等變同倫推出 返回 pushout