题型:选择题 The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.A.while B.when C.as D.until 查看答案
题型:问答题 简答题 计算题:在立式铣床上用F11125分度头展成加工滚子链轮,已知节距P=19.05mm,齿数Z=36,齿沟圆弧dz=11.91mm,分度圆直径d=145.95mm,实测外径尺寸d实=154.90mm,理论外径尺寸dc=154.99mm,求各项加工数据。 查看答案