【简答题】标准直齿圆柱齿轮不发生根切的最小齿数为 ;当直齿圆柱齿轮的齿数少于最小齿数时,可采用 变位的办法来避免根切。
【简答题】当直齿圆柱齿轮的齿数少于Z min 时,可采用 (正/负) 变位的办法来避免根切。
【单选题】The young woman ______ a Frenchman. She has ______ him for five years.
A.
married with, married with
C.
married to, been married to
D.
married, been married to
【简答题】当直齿圆柱齿轮的齿数少于 时,可采用(__)变位的办法来避免根切。
【单选题】代号为30303的圆锥滚子轴承的内径为( )
【单选题】She _____ a man _____ a lot of money. [ ]
【简答题】当直齿圆柱齿轮的齿数少于时,可采用()的办法来避免根切。
【判断题】( )龙门饱床导轨,升降丝杠用具68号导轨油。