When the chairman of Campbell's retired, McGovern was named as his successor.坎贝尔公司的总裁退休后，麦戈文被选定为继任者。Eisenhower left the White House and retired to his farm in Gettysburg.艾森豪威尔离开白宫，退隐到他在葛底斯堡的农场。The wisdom of the reti...
灰浆层:一层铺放石头或砖的砂浆层.A layer of mortar upon which stones or bricks are laid.提出了一种复合材料纤维铺放路径的生成算法.A path planning algorithm for composite fiber placement is proposed....